Mineral Specimens - page 10
Africa (excl. Morocco) - Tsumeb

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Carles Curto Text: Carles Curto (formerly curator of the Geology Museum, Barcelona) & Jordi Fabre
Alfredo Petrov Translation: Alfredo Petrov
Assistance from John S. White (former Smithsonian curator) John S. White


AFRICA (excl. Morocco)

Congo D.R. (Zaire)

Elbaite
Elbaite. Front
Front
Elbaite. Side
Side
Elbaite.

Fluorescent light (daylight)
 

TF46AN2: Group of Elbaite crystals with very sharp crystal forms and excellent upper terminations. Transparent, very lustrous and with the base of the prism up to the middle of the crystal being pink with gradations in the color tones, and with the terminations being a uniform pale green.
Rubaya, Bahunde, Masisi Territory, North Kivu Province (Kivu)  Democratic Republic of the Congo (Zaire) (2020)

Specimen size: 4.2 × 1.6 × 1.2 cm = 1.65” × 0.63” × 0.47”

Weight: 9.9 grams



Elbaite

Fluorescent light (daylight)
 

TZA64AP8: Elbaite crystal with very marked longitudinal parallel growth and excellent terminations, transparent, lustrous, red to pink in color in the prism and green in the area of the termination.
Rubaya, Bahunde, Masisi Territory, North Kivu Province (Kivu)  Democratic Republic of the Congo (Zaire) (2021)

Specimen size: 4.6 × 2 × 1.5 cm = 1.81” × 0.79” × 0.59”

Weight: 21.3 grams



Elbaite. Front
Front
Elbaite. Rear
Rear
Elbaite. Top
Top
Carrollite with Mica
Carrollite with Mica.
 

TH43AH0: A novelty at Tucson 2018. Very sharp and aerial cubo-octahedral crystal, complete and on matrix, with Mica. It has two small contacts on the left side, recrystallized by the Carrollite itself. The sample is from a recent find of samples of a great quality.
The specimen has been reviewed, photographed and published as a new discovery in the magazine ‘Mineral Up’ on page 44 of the 2018/01 edition.
Kamoya South II Mine, Kamoya, Kambove District, Katanga Copper Crescent, Katanga (Shaba)  Democratic Republic of the Congo (Zaire) (2016-2017)

Specimen size: 2.4 × 1.8 × 1.8 cm = 0.94” × 0.71” × 0.71”

Main crystal size: 1.9 × 1.9 cm = 0.75” × 0.75”




Carrollite with Pyrophyllite

Fluorescent light (daylight)
 

TB37AN1: Complete cubo-octahedral floater crystal of Carrollite, sharp, with octahedral faces predominating, very lustrous and with well defined crystal forms. To highlight a rare characteristic in the Carrollites of this deposit, the crystal is a complete floater with all its faces well developed.
Kamoya South II Mine, Kamoya, Kambove District, Katanga Copper Crescent, Katanga (Shaba)  Democratic Republic of the Congo (Zaire) (2016-2017)

Specimen size: 3.7 × 3.4 × 3.4 cm = 1.46” × 1.34” × 1.34”




Carrollite with Pyrophyllite. Front
Front
Carrollite with Pyrophyllite. Side
Side
Carrollite with Pyrophyllite. Side
Side
Carrollite with Pyrophyllite
Carrollite with Pyrophyllite. Front
Front
Carrollite with Pyrophyllite. Rear
Rear
Carrollite with Pyrophyllite. Side
Side

Fluorescent light (daylight)
 

TC47AN1: Complete cubo-octahedral floater crystal of Carrollite, sharp, with octahedral faces predominating, very lustrous and with well defined crystal forms. To highlight a rare characteristic in the Carrollites of this deposit, the crystal is a complete floater with all its faces well developed except at the base of the crystal which exhibits polycrystalline growths and remains of contact with the matrix and leafy Pyrophyllite crystals.
Kamoya South II Mine, Kamoya, Kambove District, Katanga Copper Crescent, Katanga (Shaba)  Democratic Republic of the Congo (Zaire) (2016-2017)

Specimen size: 4.1 × 3.8 × 3.3 cm = 1.61” × 1.50” × 1.30”




Carrollite with Calcite

Fluorescent light (daylight)
 

ETX27AO7: Group of deformed Carrollite crystals with the dominant defined forms of the rhombododecahedron, the cube and the octahedron. Lustrous and on a Calcite matrix.
Kamoya South II Mine, Kamoya, Kambove District, Katanga Copper Crescent, Katanga (Shaba)  Democratic Republic of the Congo (Zaire)

Specimen size: 5.1 × 2.3 × 2.9 cm = 2.01” × 0.91” × 1.14”

Main crystal size: 3 × 1.4 cm = 1.18” × 0.55”




Carrollite with Calcite. Carrollite with Calcite.
Malachite with Chrysocolla
Malachite with Chrysocolla. Malachite with Chrysocolla.
Malachite with Chrysocolla.

Fluorescent light (daylight)
 

MJA53AP7: Botryoidal Malachite growths, very lustrous and deep in color, on matrix.
The specimen, very aesthetic, comes from the Miguel David Martínez collection (number 2411), whose label we will send to the buyer.
Mutanda Mine, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba)  Democratic Republic of the Congo (Zaire) (2014)

Specimen size: 13.8 × 12.2 × 8.8 cm = 5.43” × 4.80” × 3.46”

Former collection of Miguel David Martínez



Kolwezite and Malachite after Co-rich Dolomite on Malachite and Chrysocolla after Baryte

Fluorescent light (daylight)
 

EJE73AQ0: New at Sainte-Marie 2023
A specimen that represents, apart from its evident aesthetics and its world novelty, a complete treatise on mineralogy, starting with a cobalt-bearing Dolomite (which has since disappeared during the process), followed by successive substitutions in which more copper was added, leaving as a final result Kolwezite-Malachite in pseudomorphic shapes after crystals of the initial cobalt-bearing Dolomite, and greenish blue Chrysocolla pseudomorphs after Baryte, with a stage of Malachite growth, also pseudomorphic after Baryte.
The discovery of this morphological and chemical complexity will soon be reported more extensively in an upcoming article in the French magazine Le Règne Minéral.
Tenke-Fungurume area, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba)  Democratic Republic of the Congo (Zaire) (02-03/2023)

Specimen size: 3.7 × 3.4 × 3 cm = 1.46” × 1.34” × 1.18”

Main crystal size: 0.8 × 0.6 cm = 0.31” × 0.24”




Kolwezite and Malachite after Co-rich Dolomite on Malachite and Chrysocolla after Baryte. Front / Photo: Joaquim Callén
Front / Photo: Joaquim Callén
Kolwezite and Malachite after Co-rich Dolomite on Malachite and Chrysocolla after Baryte. Rear / Foto: Joaquim Callén
Rear / Foto: Joaquim Callén
Kolwezite and Malachite after Co-rich Dolomite on Malachite and Chrysocolla after Baryte. Detail / Foto: Joaquim Callén
Detail / Foto: Joaquim Callén
Kolwezite and Malachite after Co-rich Dolomite on Malachite and Chrysocolla after Baryte
Kolwezite and Malachite after Co-rich Dolomite on Malachite and Chrysocolla after Baryte. Front / Photo: Joaquim Callén
Front / Photo: Joaquim Callén
Kolwezite and Malachite after Co-rich Dolomite on Malachite and Chrysocolla after Baryte. Side / Photo: Joaquim Callén
Side / Photo: Joaquim Callén
Kolwezite and Malachite after Co-rich Dolomite on Malachite and Chrysocolla after Baryte. Detail / Foto: Joaquim Callén
Detail / Foto: Joaquim Callén

Fluorescent light (daylight)
 

EJF73AQ0: New at Sainte-Marie 2023
A specimen that represents, apart from its evident aesthetics and its world novelty, a complete treatise on mineralogy, starting with a cobalt-bearing Dolomite (which has since disappeared during the process), followed by successive substitutions in which more copper was added, leaving as a final result Kolwezite-Malachite in pseudomorphic shapes after crystals of the initial cobalt-bearing Dolomite, and greenish blue Chrysocolla pseudomorphs after Baryte, with a stage of Malachite growth, also pseudomorphic after Baryte.
The discovery of this morphological and chemical complexity will soon be reported more extensively in an upcoming article in the French magazine Le Règne Minéral.
Tenke-Fungurume area, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba)  Democratic Republic of the Congo (Zaire) (02-03/2023)

Specimen size: 5.5 × 4 × 3.7 cm = 2.17” × 1.57” × 1.46”




Kolwezite and Malachite after Co-rich Dolomite on Malachite and Chrysocolla after Baryte

Fluorescent light (daylight)
 

EJD51AQ0: New at Sainte-Marie 2023
A specimen that represents, apart from its evident aesthetics and its world novelty, a complete treatise on mineralogy, starting with a cobalt-bearing Dolomite (which has since disappeared during the process), followed by successive substitutions in which more copper was added, leaving as a final result Kolwezite-Malachite in pseudomorphic shapes after crystals of the initial cobalt-bearing Dolomite, and greenish blue Chrysocolla pseudomorphs after Baryte, with a stage of Malachite growth, also pseudomorphic after Baryte.
The discovery of this morphological and chemical complexity will soon be reported more extensively in an upcoming article in the French magazine Le Règne Minéral.
Tenke-Fungurume area, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba)  Democratic Republic of the Congo (Zaire) (02-03/2023)

Specimen size: 5.9 × 3.7 × 4.1 cm = 2.32” × 1.46” × 1.61”

Main crystal size: 1 × 0.9 cm = 0.39” × 0.35”




Kolwezite and Malachite after Co-rich Dolomite on Malachite and Chrysocolla after Baryte. Front / Photo: Joaquim Callén
Front / Photo: Joaquim Callén
Kolwezite and Malachite after Co-rich Dolomite on Malachite and Chrysocolla after Baryte. Detail / Foto: Joaquim Callén
Detail / Foto: Joaquim Callén
Kolwezite and Malachite after Co-rich Dolomite on Malachite and Chrysocolla after Baryte
Kolwezite and Malachite after Co-rich Dolomite on Malachite and Chrysocolla after Baryte. Front / Photo: Joaquim Callén
Front / Photo: Joaquim Callén
Kolwezite and Malachite after Co-rich Dolomite on Malachite and Chrysocolla after Baryte. Side / Photo: Joaquim Callén
Side / Photo: Joaquim Callén
Kolwezite and Malachite after Co-rich Dolomite on Malachite and Chrysocolla after Baryte. Detail / Foto: Joaquim Callén
Detail / Foto: Joaquim Callén

Fluorescent light (daylight)
 

EJK66AQ0: New at Sainte-Marie 2023
A specimen that represents, apart from its evident aesthetics and its world novelty, a complete treatise on mineralogy, starting with a cobalt-bearing Dolomite (which has since disappeared during the process), followed by successive substitutions in which more copper was added, leaving as a final result Kolwezite-Malachite in pseudomorphic shapes after crystals of the initial cobalt-bearing Dolomite, and greenish blue Chrysocolla pseudomorphs after Baryte, with a stage of Malachite growth, also pseudomorphic after Baryte.
The discovery of this morphological and chemical complexity will soon be reported more extensively in an upcoming article in the French magazine Le Règne Minéral.
Tenke-Fungurume area, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba)  Democratic Republic of the Congo (Zaire) (02-03/2023)

Specimen size: 9 × 6.5 × 5.5 cm = 3.54” × 2.56” × 2.17”

Main crystal size: 0.8 × 0.6 cm = 0.31” × 0.24”




Kolwezite and Malachite after Co-rich Dolomite on Malachite and Chrysocolla after Baryte

Fluorescent light (daylight)
 

EJL93AQ0: New at Sainte-Marie 2023
A specimen that represents, apart from its evident aesthetics and its world novelty, a complete treatise on mineralogy, starting with a cobalt-bearing Dolomite (which has since disappeared during the process), followed by successive substitutions in which more copper was added, leaving as a final result Kolwezite-Malachite in pseudomorphic shapes after crystals of the initial cobalt-bearing Dolomite, and greenish blue Chrysocolla pseudomorphs after Baryte, with a stage of Malachite growth, also pseudomorphic after Baryte.
The discovery of this morphological and chemical complexity will soon be reported more extensively in an upcoming article in the French magazine Le Règne Minéral.
Tenke-Fungurume area, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba)  Democratic Republic of the Congo (Zaire) (02-03/2023)

Specimen size: 9.8 × 7 × 5 cm = 3.86” × 2.76” × 1.97”

Main crystal size: 0.5 × 0.5 cm = 0.20” × 0.20”




Kolwezite and Malachite after Co-rich Dolomite on Malachite and Chrysocolla after Baryte. Front / Photo: Joaquim Callén
Front / Photo: Joaquim Callén
Kolwezite and Malachite after Co-rich Dolomite on Malachite and Chrysocolla after Baryte. Side / Photo: Joaquim Callén
Side / Photo: Joaquim Callén
Kolwezite and Malachite after Co-rich Dolomite on Malachite and Chrysocolla after Baryte. Detail / Foto: Joaquim Callén
Detail / Foto: Joaquim Callén
Kolwezite and Malachite after Co-rich Dolomite on Malachite and Chrysocolla after Baryte. Detail / Foto: Joaquim Callén
Detail / Foto: Joaquim Callén
Cuprite with Calcite
Cuprite with Calcite. Cuprite with Calcite.
 

MB67AF2: Very sharp octahedral Cuprite crystals. They are very bright, and have a very intense and deep red color visible under an intense light. The Cuprite esthetically contrasts with the white Calcite coating the vug on a rocky matrix.
Mashamba West Mine, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba)  Democratic Republic of the Congo (Zaire)

Specimen size: 6.5 × 5 × 4.4 cm = 2.56” × 1.97” × 1.73”

Main crystal size: 0.7 × 0.6 cm = 0.28” × 0.24”




Cuprite on Malachite and Chrysocolla

Fluorescent light (daylight)
 

EGL54AO9: Obtained at Ste. Marie 2022
Group of very sharp Cuprite crystals, one of them clearly dominant, with crystal forms of the octahedron and, to a lesser extent, of the cube. With finely polycrystalline striations, translucent, with an intense red color by transmitted light, on matrix partially covered by Chrysocolla, which in turn is covered by Malachite microcrystals.
Mashamba West Mine, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba)  Democratic Republic of the Congo (Zaire)

Specimen size: 9 × 6.9 × 5.7 cm = 3.54” × 2.72” × 2.24”

Main crystal size: 1.4 × 1.2 cm = 0.55” × 0.47”




Cuprite on Malachite and Chrysocolla. Cuprite on Malachite and Chrysocolla.
Dioptase with Plancheite
Dioptase with Plancheite. Dioptase with Plancheite.
 

DM49AC8: Aggregate of very well defined Dioptase crystals. They are aerial, translucent, and bright. They have a very deep color and are on a rocky matrix partially coated by fibrous Plancheite aggregates. The crystals have a better luster and color than usual for the locality.
Tantara Mine, Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba)  Democratic Republic of the Congo (Zaire)

Specimen size: 5.6 × 4.2 × 4.2 cm = 2.20” × 1.65” × 1.65”

Main crystal size: 1.2 × 0.4 cm = 0.47” × 0.16”





Madagascar

Celestine

Fluorescent light (daylight)
Celestine
 

SV3190NBJ: Good aesthetics and magnificent luster. Another one of Miguel David Martínez's excellent choices for his collection.
We will send the label (number 826) to the buyer of the piece.
Sakoany deposit, Katsepy Commune, Mitsinjo District, Boeny Region, Mahajanga (Majunga) Province  Madagascar

Specimen size: 10.7 × 7.7 × 5.6 cm = 4.21” × 3.03” × 2.20”

Main crystal size: 2.4 × 2 cm = 0.94” × 0.79”

Former collection of Miguel David Martínez



Celestine. Celestine.
Celestine
Celestine.
Celestine.

Fluorescent light (daylight)
Celestine
 

SM480GHV: Celestine crystal geode with sharp crystal forms, transparent, with bright luster and an intense sky-blue color. A classic from Madagascar that comes to us from the Pedro Goy collection.
Sakoany deposit, Katsepy Commune, Mitsinjo District, Boeny Region, Mahajanga (Majunga) Province  Madagascar (±1980)

Specimen size: 13 × 10.2 × 7.3 cm = 5.12” × 4.02” × 2.87”

Main crystal size: 3 × 2.8 cm = 1.18” × 1.10”

Former collection of Pedro Goy



Fluor-liddicoatite

Fluorescent light (daylight)
 

TMR96AO8: Floater doubly terminated crystal with a polycrystalline upper termination, very well defined faces and edges, translucent, with good luster and an intense color.
The specimen has been analyzed and we will send a copy of the analysis to the buyer.
Antsirabé, Vakinankaratra Region, Antananarivo Province  Madagascar

Specimen size: 2.2 × 1.3 × 1.3 cm = 0.87” × 0.51” × 0.51”

With analysis copy



Fluor-liddicoatite.
Fluorite
Fluorite. Fluorite.
Fluorite.

Fluorescent light (daylight)
 

TB87AH0: A novelty at Tucson 2018. A group of Fluorite crystal cubes between translucent and transparent, with white inclusions, a very deep green color and marine-blue dichroism, clearly visible in sunlight. The locality is totally new and, even though Madagascar is a well-known mineralogical paradise, there were no more references to Fluorite occurrences other than the small crystals included in Quartz from Mandronarivo.
Mandronarivo area, Beroroha District, Atsimo-Andrefana Region  Madagascar (08-11/2017)

Specimen size: 15.8 × 12.4 × 6.8 cm = 6.22” × 4.88” × 2.68”

Main crystal size: 5 × 3 cm = 1.97” × 1.18”

Fluorescent long & short UV



Fluorite

Fluorescent light (daylight)
 

TY87AM0: Group on matrix of large cubic crystals of Fluorite, translucent, with a very deep green color and slightly bicolor navy blue. This locality was little known until 2018 and, despite being very prolific, it has produced very few pieces of this quality and this size of crystal.
Mandronarivo area, Beroroha District, Atsimo-Andrefana Region  Madagascar (08-11/2017)

Specimen size: 17.1 × 7.2 × 10.2 cm = 6.73” × 2.83” × 4.02”

Main crystal size: 6.2 × 5.7 cm = 2.44” × 2.24”

Very fluorescent long & short UV

minID: M2K-4MA



Fluorite. Front / Photo: Joaquim Callén
Front / Photo: Joaquim Callén
Fluorite. Detail / Photo: Joaquim Callén
Detail / Photo: Joaquim Callén
Grandidierite
Grandidierite. Front
Front
Grandidierite. Rear
Rear
 

MY87AE2: A novelty at Tucson 2016. An isolated crystal, translucent, bright, with a uniform and intense bluish-green color, with very well defined and deeply striated prismatic faces for the species. Of an excellent quality for this rare silicate.
Grandidierite deposit, Tranomaro Commune, Tranomaro-Maromby area, Amboasary District, Anosy Region (Fort Dauphin Region), Toliara Province (Tuléar)  Madagascar (05-12/2015)

Specimen size: 2.4 × 2.2 × 1 cm = 0.94” × 0.87” × 0.39”




Grandidierite with Quartz, Feldspar, Diopside and Mica
 

TG29AD0: A novelty at Tucson 2016. An isolated crystal on matrix. It is translucent, bright, with a uniform and intense bluish-green color and with very well defined prismatic faces. Of an excellent quality for this rare silicate.
Grandidierite deposit, Tranomaro Commune, Tranomaro-Maromby area, Amboasary District, Anosy Region (Fort Dauphin Region), Toliara Province (Tuléar)  Madagascar (05-12/2015)

Specimen size: 2.6 × 2.6 × 1.4 cm = 1.02” × 1.02” × 0.55”

Main crystal size: 2.5 × 1.4 cm = 0.98” × 0.55”

Diopside fluorescent



Grandidierite with Quartz, Feldspar, Diopside and Mica.
Grandidierite with Feldspar and Diopside
Grandidierite with Feldspar and Diopside.
 

TR49AD0: A novelty at Tucson 2016. An isolated crystal on matrix. It is translucent, bright, with a uniform and intense bluish-green color and with very well defined prismatic faces. Of an excellent quality for this rare silicate.
Grandidierite deposit, Tranomaro Commune, Tranomaro-Maromby area, Amboasary District, Anosy Region (Fort Dauphin Region), Toliara Province (Tuléar)  Madagascar (05-12/2015)

Specimen size: 2.8 × 2.4 × 0.8 cm = 1.10” × 0.94” × 0.31”

Diopside fluorescent



Grandidierite with Feldspar, Schorl and Diopside
 

TC71AD0: A novelty at Tucson 2016. Parallel growth, on matrix, of translucent and bright crystals with a uniform bluish green color and with very well defined prismatic faces. Of an excellent quality for this rare silicate.
Grandidierite deposit, Tranomaro Commune, Tranomaro-Maromby area, Amboasary District, Anosy Region (Fort Dauphin Region), Toliara Province (Tuléar)  Madagascar (05-12/2015)

Specimen size: 4 × 2.6 × 2.3 cm = 1.57” × 1.02” × 0.91”

Diopside fluorescent



Grandidierite with Feldspar, Schorl and Diopside.
Grandidierite with Quartz, Feldspar and Diopside
Grandidierite with Quartz, Feldspar and Diopside.
 

TC69AD0: A novelty at Tucson 2016. Parallel growth, on matrix, of translucent and very bright crystals with a uniform and intense bluish green color and with very well defined prismatic faces. Of an excellent quality for this rare silicate.
Grandidierite deposit, Tranomaro Commune, Tranomaro-Maromby area, Amboasary District, Anosy Region (Fort Dauphin Region), Toliara Province (Tuléar)  Madagascar (05-12/2015)

Specimen size: 5.6 × 3.3 × 2.5 cm = 2.20” × 1.30” × 0.98”

Main crystal size: 4 × 1.8 cm = 1.57” × 0.71”

Diopside fluorescent



Twinned Calcite
 

TC67J3: Group of crystals from the August 2004, find. The aggregate is very attractive and we note the clearness of the crystals, the color and luster and, especially, the existence of twins formed by the contact of two rhombohedrons.
Basalt Quarry, Ambariomiambana, Sambava District, Sava Region  Madagascar (08/2004)

Specimen size: 6.7 × 4 × 3.7 cm = 2.64” × 1.57” × 1.46”

Main crystal size: 4.5 × 3 cm = 1.77” × 1.18”

Intense zoned fluorescence long & short UV



Twinned Calcite.
Beryl (variety aquamarine)
Beryl (variety aquamarine). Front / Photo: Joaquim Callén
Front / Photo: Joaquim Callén
Beryl (variety aquamarine). Rear / Foto: Joaquim Callén
Rear / Foto: Joaquim Callén

Fluorescent light (daylight)
 

EMP70AP0: Large doubly terminated Beryl crystal, with very sharp crystal forms and distinct terminations. One termination exhibits polycrystalline growths and the opposite face shows contacts. It is very rich in faces, translucent, and a dense bluish green in color (aquamarine variety).
This specimen comes from the Claude Guyot collection, whose label we will send to the buyer.
Manakana, Vohambohitra pegmatite, Tsaratanàna District, Betsiboka Region, Mahajanga (Majunga) Province  Madagascar

Specimen size: 21 × 5.4 × 4.4 cm = 8.27” × 2.13” × 1.73”

Former collection of Claude Guyot

Weight: 802.2 grams



Corundum with Mica
Corundum with Mica  

SV2110TDR: Floater crystal of Corundum with a very marked pseudo-hexagonal outline and a very deep and uniform mauve color, flattened, with triangular growth striations and remnants of Mica matrix.
The specimen was set in a jewelry-type box with a handwritten label from an unknown collection attached, which will be delivered to the buyer of the piece.
  Madagascar

Specimen size: 1.1 × 1 × 0.3 cm = 0.43” × 0.39” × 0.12”




Corundum with Mica. Front
Front
Corundum with Mica. Side
Side
Tremolite
Tremolite.
Tremolite.

Fluorescent light (daylight)
Tremolite
 

SV290MXR: Very sharp doubly terminated Tremolite crystal, with rounded faces and edges in the upper termination, very lustrous and transparent and implanted in a cavity of a calc-silicate rock with abundant small colorless crystals which are also Tremolite. An interesting perfectly crystallized amphibole, something not very common for a mineral species like Tremolite.
The species has been analyzed and we will send a copy of the analysis to the buyer.
  Madagascar

Specimen size: 8.2 × 5.6 × 4.4 cm = 3.23” × 2.20” × 1.73”

Main crystal size: 1.5 × 1.1 cm = 0.59” × 0.43”

With analysis copy



Fluor-liddicoatite

Fluorescent light (daylight)
 

TFA67AP9: Doubly terminated floater Fluor-liddicoatite crystal, with the lower termination poorly defined, even crude, but complete, and the upper one with the faces of a sharp pyramid. The crystal is between transparent and translucent, so it needs a strong light to show the intense red color that is dominant throughout the crystal, with yellow areas with golden reflections on the terminations.
The specimen has been analyzed and we will send the buyer a copy of the analysis.
  Madagascar

Specimen size: 2.1 × 1.4 × 1.1 cm = 0.83” × 0.55” × 0.43”

With analysis copy



Fluor-liddicoatite. Front
Front
Fluor-liddicoatite. Side
Side
Fluor-liddicoatite. Light behind
Light behind

Andradite (demantoid variety and topazolite) from Ambanja

If you want to know more about the Andradite (demantoid variety) from Ambanja please follow this link

Andradite (variety demantoid) with Calcite
Andradite (variety demantoid) with Calcite. Front / Photo: Joaquim Callén
Front / Photo: Joaquim Callén
Andradite (variety demantoid) with Calcite. Top / Photo: Joaquim Callén
Top / Photo: Joaquim Callén
Andradite (variety demantoid) with Calcite. Detail / Photo: Joaquim Callén
Detail / Photo: Joaquim Callén
 

MA27AL7: Andradite crystals (demantoid variety) of good size and with a balance between trapezohedron and rhombododecahedron faces. Between transparent and translucent, with good luster and a very intense and uniform green color. On matrix, with aggregates of small Calcite crystals.
Antetezambato outcrop, Antetezambato, Maherivaratra Commune, Ambanja District, Antsiranana Province  Madagascar (2010)

Specimen size: 6.6 × 5.4 × 4.7 cm = 2.60” × 2.13” × 1.85”

Main crystal size: 1.7 × 1.1 cm = 0.67” × 0.43”


minID: FEC-Y1D



Andradite (variety demantoid) with Calcite
 

MT86AL3: Andradite crystals (demantoid variety) of good size with equally developed trapezohedral and rhombododecahedral forms, between transparent and translucent, lustrous and with an intense and uniform green color. On matrix, with aggregates of small Calcite crystals.
Antetezambato outcrop, Antetezambato, Maherivaratra Commune, Ambanja District, Antsiranana Province  Madagascar (2010)

Specimen size: 8.6 × 5.9 × 2.9 cm = 3.39” × 2.32” × 1.14”

Main crystal size: 1.6 × 1.3 cm = 0.63” × 0.51”


minID: 5RE-LAL



Andradite (variety demantoid) with Calcite. Andradite (variety demantoid) with Calcite.
Andradite (variety topazolite) with Stilbite
Andradite (variety topazolite) with Stilbite. Andradite (variety topazolite) with Stilbite.
 

TQ94Q0: A novelty at Tucson 2010. Druse on matrix of crystals very rich of faces, with the dominant forms of the dodecahedron and the trapezohedron and brown color, slightly greenish. Their luster is extraordinary and they are with small white concretions of Stilbite. The Topazolite variety has been well defined on this kind of samples and this will be reflected in a future article in The Mineralogical Record.
Antetezambato outcrop, Antetezambato, Maherivaratra Commune, Ambanja District, Antsiranana Province  Madagascar (05-06/2009)

Specimen size: 8.7 × 7.2 × 2.9 cm = 3.43” × 2.83” × 1.14”

Main crystal size: 1.5 × 1.2 cm = 0.59” × 0.47”





Malawi

Aegirine

Fluorescent light (daylight)
 

JRM10AN8: Parallel growth of very sharp and lustrous complex Aegirine crystals with perfect terminations. Given its morphological rarity, the specimen has been analyzed, and we will send a copy of the analysis to the buyer.
Mount Malosa, Zomba District  Malawi

Specimen size: 9.2 × 6.6 × 6.3 cm = 3.62” × 2.60” × 2.48”

Main crystal size: 6.6 × 3.9 cm = 2.60” × 1.54”




Aegirine. Front
Front
Aegirine. Top
Top
Eudidymite with Aegirine and Quartz
Eudidymite with Aegirine and Quartz. Front
Front
Eudidymite with Aegirine and Quartz. Side
Side
 

MF48AK7: New in Munich 2019: Parallel growth of well defined and doubly terminated white Eudidymite crystals on matrix, associated with smoky Quartz and Aegirine crystals. Eudidymite is a species that very rarely occurs in sharp well-terminated crystals and that is why the specimens from this find are so exceptional. The specimen has been analyzed and we will send a copy of the analysis to the buyer.
Mount Malosa (Northwest side), Zomba District  Malawi (09/2019)

Specimen size: 3.2 × 2.5 × 2.2 cm = 1.26” × 0.98” × 0.87”

Main crystal size: 1.5 × 0.4 cm = 0.59” × 0.16”




Epididymite with Aegirine
 

EP66AG9: A single floater crystal that has extraordinarily well defined faces and edges. It is translucent, white and has small black acicular crystals on its base. Due to the singularity and perfection of the crystal it has been analyzed to positively identify the species. We’ll send a copy of the analysis to the buyer.
Machinga, Machinga District  Malawi (02/2017)

Specimen size: 1.6 × 1.6 × 0.9 cm = 0.63” × 0.63” × 0.35”

Fluorescent short UV



Epididymite with Aegirine. Front
Front
Epididymite with Aegirine. Rear
Rear
Epididymite with Aegirine.

Mali

Grossular with Chlorite
Grossular with Chlorite. Grossular with Chlorite.

Fluorescent light (daylight)
 

TRR37AQ1: Druse of very sharp dodecahedral Grossular crystals, translucent, with good luster and orange color and on a matrix covered by lamellar Chlorite crystals.
The specimen comes from finds from the year 2023 in the Kayes region.
Koukouri diggins, Trantimou, Commune Diakon, Arrondissement Diakon, Bafoulabé Circle, Kayes Region  Mali (2023)

Specimen size: 5.2 × 2.4 × 1.7 cm = 2.05” × 0.94” × 0.67”

Main crystal size: 0.6 × 0.6 cm = 0.24” × 0.24”




Epidote with Stilbite-Ca
 

TB67AF6: Group of dark green (almost black), doubly terminated, very aerial Epidote crystals that are partially coated by small white crystals, most of them doubly terminated, of Stilbite-Ca.
The sample is from the Vallecillo collection, Madrid.
Commune Diakon, Arrondissement Diakon, Bafoulabé Circle, Kayes Region  Mali

Specimen size: 9.8 × 7.5 × 5.4 cm = 3.86” × 2.95” × 2.13”

Main crystal size: 7 × 2.5 cm = 2.76” × 0.98”

Former collection of José Luis Vallecillo



Epidote with Stilbite-Ca. Front
Front
Epidote with Stilbite-Ca. Rear
Rear
Epidote with Stilbite-Ca.
Prehnite perImorphose Anhydrite
Prehnite perImorphose Anhydrite. Front
Front
Prehnite perImorphose Anhydrite. Rear
Rear
 

TA91AL5: Perimorphic growth of Prehnite crystals with defined crystal forms, translucent and of a vivid and uniform green color. The Prehnite maintains the outline of the Anhydrite crystal on which it was formed, which later disappeared.
The specimen comes from the Rock Currier collection (no. 7271), whose label we will send to the buyer.
Bendougou village, Commune Diakon, Arrondissement Diakon, Bafoulabé Circle, Kayes Region  Mali

Specimen size: 12.5 × 7.8 × 4.6 cm = 4.92” × 3.07” × 1.81”

Former collection of Rock Currier

minID: A8J-CFV




Mozambique

'lepidolite' after Elbaite with Elbaite
 

NX51AH2: A novelty at Munich 2017. Parallel growths of 'lepidolite' crystals pseudomorphous after Elbaite. They are bright with a rich pink color, with channels and other dissolution forms and with the crystalline remains of Elbaite (verdelite variety) on the upper end.
Naipa Mine, Alto Ligonha pegmatite, Zambezia Province  Mozambique (07/2017)

Specimen size: 10.5 × 3.8 × 3.7 cm = 4.13” × 1.50” × 1.46”




'lepidolite' after Elbaite with Elbaite. Front
Front
'lepidolite' after Elbaite with Elbaite. Rear
Rear
'lepidolite' after Elbaite with Elbaite. Top
Top
Elbaite
Elbaite. Front
Front
Elbaite. Rear
Rear
Elbaite. Top
Top

Fluorescent light (daylight)
 

TTV96AP8: Complete floater crystal, doubly terminated with complex terminations, between transparent and translucent, lustrous, and green in the prism and pink in the area of the termination.
Of much better quality and transparency than is usual in this deposit.
Naipa Mine, Alto Ligonha pegmatite, Zambezia Province  Mozambique (2002)

Specimen size: 10.6 × 2 × 1.6 cm = 4.17” × 0.79” × 0.63”





Namibia (excl. Tsumeb)

Quartz (variety amethyst)
 

TMP13AN4: Scepter growth of two transparent Quartz crystals (amethyst variety), with very good luster and distinct color zoning.
We will ship the specimen in its original Perky box from the Robert J. (Bob) Noble collection, which also contains the label.
Goboboseb Mountains, Brandberg area, Erongo Region  Namibia

Specimen size: 2.7 × 1 × 0.8 cm = 1.06” × 0.39” × 0.31”

Former collection of Bob Noble



Quartz (variety amethyst). Quartz (variety amethyst).
Schorl with Feldspar and Opal
Schorl with Feldspar and Opal. Front
Front
Schorl with Feldspar and Opal. Rear
Rear
 

TP99AM8: Doubly terminated Schorl crystal on matrix, with sharp crystal forms, excellent terminations and polycrystalline growths on the prism, which has very good luster.
Erongo Mountain, Usakos, Erongo Region  Namibia

Specimen size: 12.2 × 4.4 × 3.1 cm = 4.80” × 1.73” × 1.22”

Main crystal size: 11.1 × 3 cm = 4.37” × 1.18”

Opal intense fluorescence long & short UV



Fluorite (scepter)
 

TP66AF0: Scepter growth of an octahedral Fluorite crystal with polycrystalline growths on its faces. It is bright, between transparent and translucent, and has a pale green color, more intense at the base. The sample was from Charles Key.
Erongo Mountain, Usakos, Erongo Region  Namibia

Specimen size: 2.4 × 1.6 × 1.7 cm = 0.94” × 0.63” × 0.67”

From Charles Key



Fluorite (scepter).
Fluorite (scepter)
Fluorite (scepter). Front
Front
Fluorite (scepter). Top
Top
 

TM48AF0: Scepter growth of an octahedral Fluorite crystal with polycrystalline growths on its faces. It is bright, between transparent and translucent, has a pale green color and it is on a irregular Fluorite base that has a deeper and more intense green color. The sample was from Charles Key.
Erongo Mountain, Usakos, Erongo Region  Namibia

Specimen size: 3.6 × 2.4 × 2.8 cm = 1.42” × 0.94” × 1.10”

From Charles Key



Copper

Fluorescent light (daylight)
Copper
 

SV2170CXA: Arborescent growth formed by well-defined Copper crystals showing dominant dodecahedral shapes of intense color and luster.
From a classic locality in Namibia, the specimen comes from the collection of duplicates of Carles Curto (number 1978.20), whose digital record we will send to the buyer.
Onganja (Emke) Mine, Helen Farm 235, Onganja mining area, Seeis, Windhoek District, Khomas Region  Namibia

Specimen size: 5.5 × 3.3 × 1.5 cm = 2.17” × 1.30” × 0.59”

Main crystal size: 0.9 × 0.5 cm = 0.35” × 0.20”

Former collection of Carles Curto (duplicates)



Copper. Copper.
Copper.
Descloizite
Descloizite.
Descloizite.

Fluorescent light (daylight)
Descloizite
 

XM2560BFT: Large pineapple-like groups of thick terminated Descloizite crystals, with good luster and dark brown color tones, and of great size.
It comes from a classic deposit for the species, Berg Aukas, in Namibia, mined until 1978 for zinc, lead and vanadium.


Berg Aukas, Grootfontein District, Otjozondjupa Region  Namibia

Specimen size: 11.4 × 11.2 × 7 cm = 4.49” × 4.41” × 2.76”

Main crystal size: 3.7 × 2 cm = 1.46” × 0.79”




Descloizite

Fluorescent light (daylight)
 

BRM88AP1: Descloizite crystal groups much more flattened and sharp than usual in the deposit. Translucent on the edges, shiny, and on matrix.
The specimen, a classic of great quality, comes from an important European collection.
Berg Aukas, Grootfontein District, Otjozondjupa Region  Namibia

Specimen size: 14.2 × 8.3 × 4.6 cm = 5.59” × 3.27” × 1.81”

Main crystal size: 1.5 × 1 cm = 0.59” × 0.39”




Descloizite. Front / Photo: Joaquim Callén
Front / Photo: Joaquim Callén
Descloizite. Detail / Photo: Joaquim Callén
Detail / Photo: Joaquim Callén
Smithsonite
Smithsonite.
 

TM27AB5: Aggregate, on matrix, of translucent rhombohedral Smithsonite crystals with a deep brown color and slightly orange shades. A classic from Namibia with great quality.
Berg Aukas, Grootfontein District, Otjozondjupa Region  Namibia

Specimen size: 4.8 × 4.2 × 2.9 cm = 1.89” × 1.65” × 1.14”

Main crystal size: 1 × 1 cm = 0.39” × 0.39”




Smithsonite
 

NY77AL5: Aggregate of sharp Smithsonite crystals with a rhombohedral habit, between translucent and transparent and much brighter than usual in Smithsonite. A Namibian classic from a historic locality.
Berg Aukas, Grootfontein District, Otjozondjupa Region  Namibia

Specimen size: 5 × 4.3 × 2.9 cm = 1.97” × 1.69” × 1.14”

Main crystal size: 1.6 × 1.3 cm = 0.63” × 0.51”


minID: NW7-V8G



Smithsonite. Smithsonite.
Smithsonite
Smithsonite. Front / Photo: Joaquim Callén
Front / Photo: Joaquim Callén
Smithsonite. Detail / Photo: Joaquim Callén
Detail / Photo: Joaquim Callén

Fluorescent light (daylight)
 

TGR69AO5: Druse of flattened rhombohedral Smithsonite crystals, almost lenticular, very sharp, translucent, with good luster and a uniform pale cream color.
Great quality for Berg Aukas.
Berg Aukas, Grootfontein District, Otjozondjupa Region  Namibia

Specimen size: 5.8 × 5.2 × 3 cm = 2.28” × 2.05” × 1.18”

Main crystal size: 1.5 × 0.8 cm = 0.59” × 0.31”

Fluorescence short UV & minor fluorescence long UV



Fluorite
Fluorite  

MD99AL4: Group of cubo-octahedral crystals with sharp faces and edges, between transparent and translucent, lustrous and deep green color with fine zones in shades of violet parallel to the edges of the crystals. Some areas of the specimen are partially covered by small white Calcite crystals.
The specimen, which comes from the Peter Rosewarne collection was previously in the Claus Hedegaard collection, whose label we will send to the buyer.
Okorusu Mine, Otjiwarongo District, Otjozondjupa Region  Namibia

Specimen size: 8.8 × 7.5 × 3.2 cm = 3.46” × 2.95” × 1.26”

Main crystal size: 5.6 × 5.1 cm = 2.20” × 2.01”

Former collection of Claus Hedegaard

minID: E89-HJP



Fluorite. Front
Front
Fluorite. Side
Side
Quartz
Quartz. Quartz.
 

TT27AF1: Group of crystals, some of them partially doubly terminated, with very well defined phantom growths of red Hematite inclusions. They have an amethystine nucleus visible under a strong light.
Orange River, Warmbad, Karasburg District, ǁKaras Region  Namibia (± 1980)

Specimen size: 4.8 × 3.7 × 5.3 cm = 1.89” × 1.46” × 2.09”

Main crystal size: 1.8 × 1.7 cm = 0.71” × 0.67”





Niger

Quartz (variety amethyst)

Fluorescent light (daylight)
 

EFM47AO9: Obtained at Ste. Marie 2022
Group of Quartz crystals, one of them clearly dominant, with very sharp crystal forms, with a relatively short prism, translucent and with a very deep intense violet color, on a base of white Quartz. The specimen comes from a find made in a locality practically unknown to date.
Berjé, Aïr Massif, Agadez Region  Niger (08/2021)

Specimen size: 8.2 × 5.2 × 4.6 cm = 3.23” × 2.05” × 1.81”




Quartz (variety amethyst). Front
Front
Quartz (variety amethyst). Side
Side
Quartz (variety amethyst). Rear
Rear
Beryl (variety emerald)
Beryl (variety emerald). Front
Front
Beryl (variety emerald). Rear
Rear

Fluorescent light (daylight)
 

EBM37AO7: New discovery at Ste. Marie 2022, new locality for Beryl (variety emerald)
As explained in emeralds of Niger, although their color is not intense, the presence of Cr and V accredits them as emeralds. In its favor its transparency and good crystallographic forms and being a previously unknown locality.
Taraouadji Mountains, Aïr Massif, Agadez Region  Niger (04/2022)

Specimen size: 1.4 × 0.6 × 0.5 cm = 0.55” × 0.24” × 0.20”

Weight: 1 grams



Beryl (variety emerald)

Fluorescent light (daylight)
 

EFM88AO7: New discovery at Ste. Marie 2022, new locality for Beryl (variety emerald)
As explained in emeralds of Niger, although their color is not intense, the presence of Cr and V accredits them as emeralds. In its favor its transparency and good crystallographic forms and being a previously unknown locality.
This sample has been referenced and pictured, as a novelty in Ste. Marie 2022, in the magazine 'Le Règne Minéral' number 166, July-August 2022, page 47
Taraouadji Mountains, Aïr Massif, Agadez Region  Niger (04/2022)

Specimen size: 1.6 × 0.8 × 0.6 cm = 0.63” × 0.31” × 0.24”

Weight: 1.5 grams



Beryl (variety emerald). Front
Front
Beryl (variety emerald). Rear
Rear

Republic of the Congo

Chalcocite
Chalcocite. Front
Front
Chalcocite. Side / Photo: Joaquim Callén
Side / Photo: Joaquim Callén

Fluorescent light (daylight)
 

EGR46AN4: New discovery: very aerial floater group of very sharp platy crystals of Chalcocite, with a pseudo-hexagonal outline, lustrous, with parallel and polycrystalline growths.
The specimen, of high quality for the species, comes from new workings in the M'Passa area where a group of small mines used to yield, in their glorious past, specimens with big sharp crystals. With the cessation of exploitation in the 1980s, that glory was lost, but fortunately it has now returned with specimens as magnificent as those and, moreover, with a great variety of crystallographic habits.
M'Passa Mines, Mindouli District, Pool Department  Republic of the Congo (2021)

Specimen size: 5.5 × 5.2 × 3.1 cm = 2.17” × 2.05” × 1.22”




Chalcocite

Fluorescent light (daylight)
 

ERB96AN4: New discovery: very aerial group of Chalcocite crystals, huge for the species, between platy and tabular, very sharp, with a pseudo-hexagonal outline and great luster.
This specimen, of high quality for the species, comes from new workings in the M'Passa area where a group of small mines used to produce, in their glorious past, specimens with large sharp crystals. With the closure of the workings in the 1980s, that glory was lost, although fortunately it has now returned with specimens as magnificent as those and, moreover, with a great variety of crystallographic habits.
This specimen has been published on the Mineralogical Record´s web page, in the 'What's New' section, report 61, August 30, 2021 edition, page 10
M'Passa Mines, Mindouli District, Pool Department  Republic of the Congo (2021)

Specimen size: 6.6 × 5 × 1.2 cm = 2.60” × 1.97” × 0.47”




Chalcocite. Front / Photo: Joaquim Callén
Front / Photo: Joaquim Callén
Chalcocite. Rear / Photo: Joaquim Callén
Rear / Photo: Joaquim Callén
Dioptase
Dioptase.

Fluorescent light (daylight)
 

TXX47AP9: Group of Dioptase crystals on matrix, with a prismatic habit and the terminations of an acute rhombohedron. Very lustrous, with very deep color.
Mindouli, Mindouli District, Pool Department  Republic of the Congo

Specimen size: 3.4 × 3 × 2.4 cm = 1.34” × 1.18” × 0.94”

Main crystal size: 2.7 × 2.1 cm = 1.06” × 0.83”




Dioptase

Fluorescent light (daylight)
 

TJB67AP9: Group of Dioptase crystals on matrix, with a prismatic habit and the terminations of an acute rhombohedron. Very lustrous, with very deep color.
Mindouli, Mindouli District, Pool Department  Republic of the Congo

Specimen size: 4.2 × 2.9 × 2.1 cm = 1.65” × 1.14” × 0.83”

Main crystal size: 1.1 × 0.8 cm = 0.43” × 0.31”




Dioptase. Dioptase.
Dioptase
Dioptase. Front
Front
Dioptase. Side
Side
Dioptase.

Fluorescent light (daylight)
 

TXX97AP9: Group of Dioptase crystals on matrix, one of them clearly dominant, with a prismatic habit and acute rhombohedral terminations. Very lustrous, with very deep color.
Mindouli, Mindouli District, Pool Department  Republic of the Congo

Specimen size: 6.1 × 4.1 × 2.5 cm = 2.40” × 1.61” × 0.98”

Main crystal size: 2.2 × 1.2 cm = 0.87” × 0.47”




Dioptase
 

TR93AF6: Druse of rhombohedral crystals with very well defined faces and edges, extraordinarily bright and on matrix.
The sample is from the Vallecillo collection, Madrid.
Renéville, Kindanba District, Pool Department  Republic of the Congo

Specimen size: 7.2 × 5 × 2.5 cm = 2.83” × 1.97” × 0.98”

Main crystal size: 1.6 × 1.4 cm = 0.63” × 0.55”

Former collection of José Luis Vallecillo



Dioptase. Dioptase.
Dioptase.
Cerussite (twinned)
Cerussite (twinned). Front / Photo: Joaquim Callén
Front / Photo: Joaquim Callén

Fluorescent light (daylight)
Cerussite (twinned)
 

XM2290MEE: V-shaped twin of sharp and lustrous Cerussite crystals, with polycrystalline terminations and remnants of a matrix formed of iron oxides. It comes from a Congolese mining district which produces lead, zinc and, to a lesser extent, copper.


M'Fouati, M'Fouati District, Bouenza Department  Republic of the Congo (2022)

Specimen size: 5.6 × 3.9 × 2.8 cm = 2.20” × 1.54” × 1.10”

Main crystal size: 5.1 × 2.7 cm = 2.01” × 1.06”




Cerussite (twinned)

Fluorescent light (daylight)
Cerussite (twinned)
 

XM2230MLM: Group of Cerussite crystals, one of them clearly dominant, twinned, very sharp and lustrous, between transparent and translucent, with external staining and iron oxide inclusions.
It comes from a Congolese mining district which produces lead, zinc and, to a lesser extent, copper.
M'Fouati, M'Fouati District, Bouenza Department  Republic of the Congo (2022)

Specimen size: 6.7 × 2.8 × 2.2 cm = 2.64” × 1.10” × 0.87”




Cerussite (twinned).
Dioptase with Quartz and Cerussite
Dioptase with Quartz and Cerussite. Front / Photo: Joaquim Callén
Front / Photo: Joaquim Callén
Dioptase with Quartz and Cerussite. Detail / Photo: Joaquim Callén
Detail / Photo: Joaquim Callén
Dioptase with Quartz and Cerussite. Detail / Foto: Joaquim Callén
Detail / Foto: Joaquim Callén
Dioptase with Quartz and Cerussite. Detail / Foto: Joaquim Callén
Detail / Foto: Joaquim Callén

Fluorescent light (daylight)
 

MFB86AP3: Dioptase crystals, in groups and isolated, some of them doubly terminated, very lustrous and in matrix, on slightly smoky Quartz crystals and partially covered by brown Cerussite crystals, distinctive of the locality.
M'Fouati, M'Fouati District, Bouenza Department  Republic of the Congo (2022)

Specimen size: 7.4 × 5.2 × 4.8 cm = 2.91” × 2.05” × 1.89”

Main crystal size: 1.1 × 0.5 cm = 0.43” × 0.20”




Dioptase with Plancheite

Fluorescent light (daylight)
 

MLT67AP3: Group of Dioptase crystals, some of them doubly terminated and large, on matrix, with bright blue Plancheite. The specimen comes from a very little known locality.
The Plancheite has been analyzed and we will send a copy of the analysis to the buyer.
Ngouedi mission village, Loutete, Mouyondzi District, Bouenza Department  Republic of the Congo (2022)

Specimen size: 9.5 × 5.8 × 2.9 cm = 3.74” × 2.28” × 1.14”

Main crystal size: 3.8 × 1.6 cm = 1.50” × 0.63”

With analysis copy



Dioptase with Plancheite. Front / Photo: Joaquim Callén
Front / Photo: Joaquim Callén
Dioptase with Plancheite. Detail / Photo: Joaquim Callén
Detail / Photo: Joaquim Callén
Dioptase with Plancheite and Quartz
Dioptase with Plancheite and Quartz. Front / Photo: Joaquim Callén
Front / Photo: Joaquim Callén
Dioptase with Plancheite and Quartz. Detail / Photo: Joaquim Callén
Detail / Photo: Joaquim Callén

Fluorescent light (daylight)
 

MJK97AP3: Dioptase crystals, isolated or in small groups, more elongated than usual in the species and many of them doubly terminated, extraordinarily lustrous and on matrix. On Quartz and associated with Plancheite. The specimen comes from a very little known locality.
The Plancheite has been analyzed and we will send a copy of the analysis to the buyer.
Ngouedi mission village, Loutete, Mouyondzi District, Bouenza Department  Republic of the Congo (2022)

Specimen size: 21 × 10.2 × 5.2 cm = 8.27” × 4.02” × 2.05”

Main crystal size: 1.1 × 0.2 cm = 0.43” × 0.08”




Dioptase with Wulfenite coated by Pyromorphite

Fluorescent light (daylight)
 

TPA99AP2: Druse of very lustrous equant crystals of Dioptase, with a very vivid color and with lamellar crystals of Wulfenite with coatings of Pyromorphite microcrystals.
The Pyromorphite has been analyzed and the results were a surprise because until now these coatings had been called Cerussite! We will send a copy of the analysis to the buyer.
M'Fouati, M'Fouati District, Bouenza Department  Republic of the Congo

Specimen size: 6 × 4.6 × 4.4  cm = 2.36” × 1.81” × 1.73”

Main crystal size: 1 × 0.7 cm = 0.39” × 0.28”

With analysis copy



Dioptase with Wulfenite coated by Pyromorphite. Dioptase with Wulfenite coated by Pyromorphite.
Hemimorphite
Hemimorphite. Front / Photo: Joaquim Callén
Front / Photo: Joaquim Callén
Hemimorphite. Detail / Photo: Joaquim Callén
Detail / Photo: Joaquim Callén

Fluorescent light (daylight)
 

TBM98AP2: Druse, on matrix, of Hemimorphite crystals with recognizable crystal shapes, translucent and pale blue. From a classic locality, but one with few quality specimens.
This specimen comes from the collection of D. Colin, whose label we will send to the buyer.
M'Fouati Mine, M'Fouati, M'Fouati District, Bouenza Department  Republic of the Congo

Specimen size: 11.4 × 9.7 × 7.4 cm = 4.49” × 3.82” × 2.91”





South Africa

Bultfonteinite with Hydroxyapophyllite-(K) and Calcite
Bultfonteinite with Hydroxyapophyllite-(K)  and Calcite  

XM70ED: Fanlike groups of snowy white acicular crystals of Bultfonteinite replacing the faces of short elongated crystals of Hydroxyapophyllite-(K) which has a pseudocubic habit. In some cases the replacement is deeper and forms a more or less complete pseudomorph of the preexisting Hydroxyapophyllite-(K). All are on a matrix of clear, complex, crystals of Calcite.
We’ll send a copy of the analysis to the buyer of the piece.
N'Chwaning II Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province  South Africa

Specimen size: 3.3 × 3.1 × 1.7 cm = 1.30” × 1.22” × 0.67”

Main crystal size: 1.4 × 1.1 cm = 0.55” × 0.43”

With analysis copy



Bultfonteinite with Hydroxyapophyllite-(K)  and Calcite.
Shigaite with Rhodochrosite and Siderite
Shigaite with Rhodochrosite and Siderite. Shigaite with Rhodochrosite and Siderite.
Shigaite with Rhodochrosite and Siderite.
 

MT27AC8: Very aerial aggregate of laminar Shigaite crystals. They are bright and transparent, with a color between yellow and orange, and have a considerable size for the species. The Shigaite, on matrix, is implated on a botryoidal Rhodochrosite aggregate and it is with crystalline Siderite. Not bad for the species.
The specimen has been photographed and published in the magazine ‘Paragénesis’, number 01/2016, page 80
N'Chwaning I Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province  South Africa (2007)

Specimen size: 7.1 × 3.8 × 3.6 cm = 2.80” × 1.50” × 1.42”

Main crystal size: 0.7 × 0.5 cm = 0.28” × 0.20”




Hematite
 

TZM63AN8: A complex floater crystal of Hematite, very rich in crystal forms and extraordinarily shiny.
We will ship the specimen in its original Perky box from the Robert J. (Bob) Noble collection, which also contains the label.
N'Chwaning II Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province  South Africa

Specimen size: 2 × 1.7 × 1.2 cm = 0.79” × 0.67” × 0.47”

Former collection of Bob Noble



Hematite. Front
Front
Hematite. Front
Front
Hematite. Side
Side
Hematite
Hematite. Front
Front
Hematite. Front
Front
Hematite. Rear
Rear
 

TJ88AL5: Thick tabular Hematite crystal, very sharp, shiny and rich in faces.
We will send the specimen in its original Perky box from the Robert J. Noble collection, which also contains the label.
Wessels Mine, Hotazel, Kalahari manganese field (KMF), Northern Cape Province  South Africa

Specimen size: 3 × 2.3 × 1 cm = 1.18” × 0.91” × 0.39”

Former collection of Bob Noble

minID: L7R-UQD



Quartz (varieties smoky and scepter)
Quartz (varieties smoky and scepter)  

XM150TJ: Parallel and scepter growth of doubly terminated crystals, very lustrous, transparent, and with an intense smoky color, on a group of very elongated white Quartz crystals.
Steinkopf, Namakwa District (Namaqualand), Northern Cape Province  South Africa (08/2010)

Specimen size: 5 × 3.1 × 2.2 cm = 1.97” × 1.22” × 0.87”




Quartz (varieties smoky and scepter).
Quartz (varieties smoky and scepter).
Sceptered smoky Quartz
Sceptered smoky Quartz. Front
Front
Sceptered smoky Quartz. Rear
Rear
 

TM46S1: A novelty at Tucson 2011. Sceptered, and partially windowed growth of transparent crystals, very bright in deep smoky shades and on a parallel group of crystals of white Quartz.
Steinkopf, Namakwa District (Namaqualand), Northern Cape Province  South Africa (08/2010)

Specimen size: 6.2 × 2.8 × 2.4 cm = 2.44” × 1.10” × 0.94”




Malachite with Azurite and Chrysocolla

Fluorescent light (daylight)
Malachite with Azurite and Chrysocolla
 

SV2110TXJ: Brilliant botryoidal Malachite aggregates of deep green tones, with remnants of the enclosing concretion that is distinguished by lighter greenish tones, with Azurite aggregates, especially visible on the back face.
The specimen, which is from a known African locality but one from which quality specimens are rare, comes from the old collection of Robert-Auguste Touchon and is accompanied by a handwritten label, which will be delivered to the buyer of the piece.
Okiep Copper District, Namakwa District Municipality, Northern Cape  South Africa

Specimen size: 3.3 × 3.1 × 3 cm = 1.30” × 1.22” × 1.18”

Main crystal size: 0.2 × 0.2 cm = 0.08” × 0.08”

Former collection of Robert-Auguste Touchon



Malachite with Azurite and Chrysocolla. Malachite with Azurite and Chrysocolla.

Olmiite

From the great Olmiite finds made in N'Chwaning Mine we offer this further material. The quality is, as you can see, much better than the Poldervaartites found in the Wessels Mine. Notably the color is much more intense and redder. On the subject of the color it is necessary to warn you that some of these new Olmiites show an intense color change depending of the kind of light used: in day light they become yellowish but in artificial light they are a spectacular strawberry red color.

Olmiite
Olmiite. Front
Front
Olmiite. Rear
Rear
 

EG6K9: Excellent miniature. The prismatic crystals are similar to a wheatsheaf with good brilliance and color. On rocky matrix.
N'Chwaning II Mine, section 5 south, stope 46-47 roof, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province  South Africa (01/2002)

Specimen size: 2.5 × 2 × 1.4 cm = 0.98” × 0.79” × 0.55”

Main crystal size: 1.2 × 0.8 cm = 0.47” × 0.31”

Type locality



Olmiite
 

TLF86AN9: Sheaf-like growth of Olmiite crystals with well defined faces and edges, with good luster and a pale brown color, on matrix.
We will ship the specimen in its original Perky box from the Robert J. Noble collection, which also contains the label.
N'Chwaning II Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province  South Africa

Specimen size: 2.7 × 2 × 2.1 cm = 1.06” × 0.79” × 0.83”

Fluorescence short UV & minor fluorescence long UV

Former collection of Bob Noble



Olmiite. Front
Front
Olmiite. Front
Front
Olmiite. Side
Side
Olmiite
Olmiite. Front - neon light (day light)
Front - neon light (day light)
Olmiite. Front - bulb light
Front - bulb light
Olmiite. Rear - neon light (day light)
Rear - neon light (day light)
Olmiite. Rear - bulb light
Rear - bulb light
 

EC97AK3: Group of crystals of short prismatic habit, well developed, of good size for the species, translucent and lustrous, color between pink and reddish, as was typical of the first finds of this species.
N'Chwaning II Mine, section 5 south, stope 46-47 roof, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province  South Africa (01/2002)

Specimen size: 3.2 × 2.8 × 2.1 cm = 1.26” × 1.10” × 0.83”

Main crystal size: 0.5 × 0.5 cm = 0.20” × 0.20”

Fluorescence short UV & minor fluorescence long UV

Type locality




Bultfonteinite

Bultfonteinite is a rare phyllosilicate (calcium fluorsilicate) that exists in the N'Chwaning mine along with another rare phyllosilicate (also calcium), Oyelite. In fact, while awaiting the analysis of these specimens we had indicated on the web site that they were Oyelite, as previous finds from the same mine with the same appearance and white color had always been considered Oyelite. So when we got the results of the analysis, much to our surprise, the fluor present in the sample as well as the atomic ratio of Ca/Si=1:2 indicates that the specimens are Bultfonteinite and not Oyelite.

Bultfonteinite with Hydroxyapophyllite-(K) and Calcite
 

EC63R1: Fanlike groups of snowy white acicular crystals of Bultfonteinite replacing the faces of short elongated crystals of Hydroxyapophyllite-(K) which has a pseudocubic habit. In some cases the replacement is deeper and forms a more or less complete pseudomorph of the preexisting Hydroxyapophyllite-(K). All are on a matrix of clear, complex, crystals of Calcite. We’ll send a copy of the analysis to the buyer of the piece.
N'Chwaning II Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province  South Africa (2006)

Specimen size: 3.4 × 2.7 × 2.9 cm = 1.34” × 1.06” × 1.14”

Main crystal size: 0.7 × 0.7 cm = 0.28” × 0.28”




Bultfonteinite with Hydroxyapophyllite-(K) and Calcite.
Bultfonteinite with Hydroxyapophyllite-(K) and Calcite
Bultfonteinite with Hydroxyapophyllite-(K) and Calcite.
 

EV13R1: Fanlike groups of snowy white acicular crystals of Bultfonteinite replacing the faces of short elongated crystals of Hydroxyapophyllite-(K) which has a pseudocubic habit. In some cases the replacement is deeper and forms a more or less complete pseudomorph of the preexisting Hydroxyapophyllite-(K). All are on a matrix of clear, complex, crystals of Calcite. We’ll send a copy of the analysis to the buyer of the piece.
N'Chwaning II Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province  South Africa (2006)

Specimen size: 3.5 × 3.3 × 2 cm = 1.38” × 1.30” × 0.79”

Main crystal size: 1.2 × 1.1 cm = 0.47” × 0.43”




Bultfonteinite with Hydroxyapophyllite-(K) and Calcite
 

EW26R1: Fanlike groups of snowy white acicular crystals of Bultfonteinite replacing the faces of short elongated crystals of Hydroxyapophyllite-(K) which has a pseudocubic habit. In some cases the replacement is deeper and forms a more or less complete pseudomorph of the preexisting Hydroxyapophyllite-(K). All are on a matrix of clear, complex, crystals of Calcite. We’ll send a copy of the analysis to the buyer of the piece.
The specimen has been reviewed, photographed and published as a new discovery in the magazine ‘Rivista Mineralogica Italiana’ on page 51 in number 2011/1
N'Chwaning II Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province  South Africa (2006)

Specimen size: 4.1 × 2.6 × 2.5 cm = 1.61” × 1.02” × 0.98”

Main crystal size: 1 × 1 cm = 0.39” × 0.39”




Bultfonteinite with Hydroxyapophyllite-(K) and Calcite.
Bultfonteinite with Hydroxyapophyllite-(K) and Calcite
Bultfonteinite with Hydroxyapophyllite-(K) and Calcite.
 

EV12R1: Fanlike groups of snowy white acicular crystals of Bultfonteinite replacing the faces of short elongated crystals of Hydroxyapophyllite-(K) which has a pseudocubic habit. In some cases the replacement is deeper and forms a more or less complete pseudomorph of the preexisting Hydroxyapophyllite-(K). All are on a matrix of clear, complex, crystals of Calcite. We’ll send a copy of the analysis to the buyer of the piece.
N'Chwaning II Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province  South Africa (2006)

Specimen size: 4.2 × 2.6 × 3 cm = 1.65” × 1.02” × 1.18”

Main crystal size: 0.8 × 0.6 cm = 0.31” × 0.24”




Bultfonteinite with Hydroxyapophyllite-(K) and Calcite
 

ER14R1: Fanlike groups of snowy white acicular crystals of Bultfonteinite replacing the faces of short elongated crystals of Hydroxyapophyllite-(K) which has a pseudocubic habit. In some cases the replacement is deeper and forms a more or less complete pseudomorph of the preexisting Hydroxyapophyllite-(K). All are on a matrix of clear, complex, crystals of Calcite. We’ll send a copy of the analysis to the buyer of the piece.
N'Chwaning II Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province  South Africa (2006)

Specimen size: 4.4 × 3.4 × 3.7 cm = 1.73” × 1.34” × 1.46”

Main crystal size: 0.9 × 0.8 cm = 0.35” × 0.31”




Bultfonteinite with Hydroxyapophyllite-(K) and Calcite.
Bultfonteinite with Hydroxyapophyllite-(K) and Calcite
Bultfonteinite with Hydroxyapophyllite-(K) and Calcite.
 

EH16R1: Fanlike groups of snowy white acicular crystals of Bultfonteinite replacing the faces of short elongated crystals of Hydroxyapophyllite-(K) which has a pseudocubic habit. In some cases the replacement is deeper and forms a more or less complete pseudomorph of the preexisting Hydroxyapophyllite-(K). All are on a matrix of clear, complex, crystals of Calcite.
N'Chwaning II Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province  South Africa (2006)

Specimen size: 4.7 × 2.7 × 2.3 cm = 1.85” × 1.06” × 0.91”

Main crystal size: 0.9 × 0.8 cm = 0.35” × 0.31”




Bultfonteinite with Hydroxyapophyllite-(K) and Calcite
 

EK26R1: Fanlike groups of snowy white acicular crystals of Bultfonteinite replacing the faces of short elongated crystals of Hydroxyapophyllite-(K) which has a pseudocubic habit. In some cases the replacement is deeper and forms a more or less complete pseudomorph of the preexisting Hydroxyapophyllite-(K). All are on a matrix of clear, complex, crystals of Calcite. We’ll send a copy of the analysis to the buyer of the piece.
N'Chwaning II Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province  South Africa (2006)

Specimen size: 4.7 × 3.4 × 2.7 cm = 1.85” × 1.34” × 1.06”

Main crystal size: 1.4 × 1.4 cm = 0.55” × 0.55”




Bultfonteinite with Hydroxyapophyllite-(K) and Calcite.

Tanzania

Zoisite (variety tanzanite)
Zoisite (variety tanzanite). Front
Front
Zoisite (variety tanzanite). Rear
Rear
Zoisite (variety tanzanite). Side
Side

Fluorescent light (daylight)
 

ETV89AO9: Obtained at Ste. Marie 2022
Zoisite crystal (tanzanite variety) with very sharp crystal forms, with fine parallel growths and deep hopper faces, transparent to translucent, very lustrous, and with an intense, deep and uniform lavender-blue color.
Merelani mines, Merelani Hills, Lelatema Mountains, Simanjiro District, Manyara Region  Tanzania

Specimen size: 3 × 2 × 1.2 cm = 1.18” × 0.79” × 0.47”

Weight: 13.4 grams




Tunisia

Fluorite with Calcite
Fluorite with Calcite  

TC13FA: Very sharp Fluorite crystals, with distinctly stepped faces, transparent, shiny, pale lilac in color with geometric zoning of greater intensity on the edges. On matrix, with scalenohedral Calcite crystals. The specimen comes from the Jan Buma collection (number 971104) whose collection file we will send to the buyer.
Hammam-Zriba Mine, Zriba, Zaghouan Governorate  Tunisia

Specimen size: 5.7 × 5.2 × 3 cm = 2.24” × 2.05” × 1.18”

Main crystal size: 3.2 × 2.2 cm = 1.26” × 0.87”

Former Jan Buma collection. Number 971104



Fluorite with Calcite.

Zambia

Libethenite
Libethenite. Libethenite.
 

TK37AL8: Group of very sharp dipyramidal Libethenite crystals with well defined faces and edges, shiny and with a very deep green color, almost black.
We will ship the specimen in its original Perky box from the Robert J. Noble collection, which also contains the label, which shows that it was previously in the James (Jim) Minette collection.
This specimen has been published on the Mineralogical Record´s web page, in the ‘What's New’ section, report 57, August 30, 2020 edition, page 5

Nkana Mine (Rokana Mine), Mindola pit, Kitwe, Kitwe District, Copperbelt Province  Zambia

Specimen size: 2.3 × 1.6 × 1.3 cm = 0.91” × 0.63” × 0.51”

Main crystal size: 0.5 × 0.4 cm = 0.20” × 0.16”

Former collection of Bob Noble

minID: QPW-KVM




Zimbabwe

Quartz scepter (variety smoky and amethyst)
 

EC36AL8: Scepter growth of a transparent Quartz crystal with good luster and phantom growths, abundant inclusions and a very vivid amethyst color with smoky colored areas distributed irregularly in the crystal. Of the best possible quality for the locality, which is not very well known.
Chibuku Mine, Zambezi Valley, Mashonaland West  Zimbabwe (2018)

Specimen size: 4.7 × 1.8 × 1.5 cm = 1.85” × 0.71” × 0.59”

Main crystal size: 2.3 × 1.8 cm = 0.91” × 0.71”


minID: 2V7-HME



Quartz scepter (variety smoky and amethyst). Front
Front
Quartz scepter (variety smoky and amethyst). Rear
Rear
Quartz scepter (variety amethyst)
Quartz scepter (variety amethyst). Front
Front
Quartz scepter (variety amethyst). Rear
Rear
 

EG66AL8: Scepter growth of a transparent Quartz crystal very shiny, with phantom growths, abundant inclusions and a very vivid color, between dominant smoky tones and amethyst violet irregularly distributed in the crystal. On a doubly terminated crystal of colorless Quartz with abundant inclusions. Of the best possible quality for the locality, which is not very well known.
Chibuku Mine, Zambezi Valley, Mashonaland West  Zimbabwe (2018)

Specimen size: 7.4 × 2.1 × 1.4 cm = 2.91” × 0.83” × 0.55”

Main crystal size: 1.6 × 1.3 cm = 0.63” × 0.51”


minID: HKA-U79




TSUMEB

To see more Tsumeb specimens, please visit the "Desmond Sacco" section

Mottramite with Calcite

Fluorescent light (daylight)
Mottramite with Calcite
 

SV280CTF: Group of Mottramite crystals with a dark green color and velvety appearance showing cavities which Calcite crystals have taken advantage of to develop, one of them very visible, forming defined faces and edges, with a soft pink color.
The specimen comes from the collection of duplicates of Carles Curto No. 1982.33, whose digital catalogue entry we will send to the buyer.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (±1982)

Specimen size: 2.8 × 2 × 1.7 cm = 1.10” × 0.79” × 0.67”

Main crystal size: 0.7 × 0.4 cm = 0.28” × 0.16”

Former collection of Carles Curto (duplicates)



Mottramite with Calcite. Mottramite with Calcite.
Mimetite
Mimetite. Mimetite.
 

LR86AK7: Very elongated crystals of Mimetite, with excellent terminations, transparent, lustrous, intense yellow, on matrix.
This piece is from the collection of Philippe Morelon (No. 1100) whose label we will send to the buyer.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 3 × 2.2 × 1.4 cm = 1.18” × 0.87” × 0.55”

Main crystal size: 0.3 × 0.1 cm = 0.12” × 0.04”

Minor fluorescence long & short UV

Former collection of Philippe Morelon



Mimetite
Mimetite  

EA28X5: Polycrystalline “bundled” growths of crystals with acute pyramidal micro-terminations. They are bright, have a clear yellow color and are on matrix.
The sample is from the collection of Claus Hedegaard, whose label we’ll send to the buyer.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 9 × 5.5 × 5 cm = 3.54” × 2.17” × 1.97”

Main crystal size: 0.5 × 0.4 cm = 0.20” × 0.16”

Former collection of Claus Hedegaard



Mimetite. Mimetite.
Azurite with Dolomite
Azurite with Dolomite.
Azurite with Dolomite  

HM80TQ: Group of very sharp Azurite crystals, with a bright luster and very vivid color and partially covered by small white rhombohedral Dolomite crystals.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 2.9 × 2 × 2.1 cm = 1.14” × 0.79” × 0.83”


minID: TJP-N3L



Azurite with Cerussite
 

EP99AG3: Group of complex Azurite crystals, one of them clearly dominant, with very well defined faces and edges, bright and with a very deep color with vivid reflections and transparencies. A classic from Tsumeb.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (1975)

Specimen size: 3.4 × 3.1 × 1.9 cm = 1.34” × 1.22” × 0.75”

Main crystal size: 2.7 × 1.7 cm = 1.06” × 0.67”




Azurite with Cerussite. Front
Front
Azurite with Cerussite. Top
Top
Azurite
Azurite. Azurite.
Azurite  

EE46X6: Floater group of crystals that have very well defined faces and edges and well marked parallel growths, an uncommon shape for Tsumeb Azurite. The sample is from the Claus Hedegaard, whose label we’ll send to the buyer.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 3.9 × 3.7 × 2.7 cm = 1.54” × 1.46” × 1.06”

Main crystal size: 2.2 × 1.2 cm = 0.87” × 0.47”

Former collection of Claus Hedegaard



Azurite

Fluorescent light (daylight)
 

TTM49AP2: Druse of very sharp and lustrous Azurite crystals with an acute prismatic shape, translucent, and on matrix.
A good Tsumeb classic.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 10.9 × 6.3 × 4.2 cm = 4.29” × 2.48” × 1.65”

Main crystal size: 0.9 × 0.2 cm = 0.35” × 0.08”




Azurite. Front / Photo: Joaquim Callén
Front / Photo: Joaquim Callén
Azurite. Detail / Photo: Joaquim Callén
Detail / Photo: Joaquim Callén
Malachite after Azurite and Azurite
Malachite after Azurite and Azurite. Front
Front
Malachite after Azurite and Azurite. Rear
Rear
Malachite after Azurite and Azurite. Side
Side
Malachite after Azurite and Azurite  

TL48AJ4: Parallel growth, on matrix, of very sharp Malachite (after Azurite) crystals. They have a silky luster and as an added feature there are small, very bright Azurite crystals. A classic from Tsumeb, very esthetic, that is from the Lee Hogg collection whose label we will send to the buyer.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 4.1 × 2.5 × 2.1 cm = 1.61” × 0.98” × 0.83”

Main crystal size: 3.4 × 2 cm = 1.34” × 0.79”

Former collection of Lee Hogg



Malachite after Cuprite with Calcite
 

TR73AJ3: Groups of Malachite crystals (after octahedral Cuprite), coated by a late phase of Malachite microcrystals. They are on a Calcite matrix. Pseudomorphs of Malachite after Cuprite are very uncommon at Tsumeb, and even more so with such large crystals.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 6.1 × 5.7 × 3.7 cm = 2.40” × 2.24” × 1.46”

Main crystal size: 0.8 × 0.7 cm = 0.31” × 0.28”

Calcite fluorescent short UV



Malachite after Cuprite with Calcite. Malachite after Cuprite with Calcite.
Malachite after Azurite
Malachite after Azurite. Malachite after Azurite.
 

MC51AK7: Sharp group of pseudomorphic Malachite after doubly terminated Azurite crystals, one of them clearly dominant, with very marked polycrystalline growths.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 8.8 × 4.7 × 2.9 cm = 3.46” × 1.85” × 1.14”

Main crystal size: 8.2 × 2.1 cm = 3.23” × 0.83”




Malachite after Azurite with Quartz and Cerussite

Fluorescent light (daylight)
 

TM93AK7: Malachite pseudomorphic after a group of Azurite crystals, one of them clearly dominant, large, and doubly terminated, with Cerussite, on matrix.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 10.2 × 7.2 × 3.7 cm = 4.02” × 2.83” × 1.46”

Main crystal size: 9.8 × 4.2 cm = 3.86” × 1.65”




Malachite after Azurite with Quartz and Cerussite. Front
Front
Malachite after Azurite with Quartz and Cerussite. Rear
Rear
Smithsonite (variety Co-bearing smithsonite)
Smithsonite (variety Co-bearing smithsonite). Smithsonite (variety Co-bearing smithsonite).

Fluorescent light (daylight)
 

TFB48AN9: Druse of small rhombohedral Smithsonite crystals that are very sharp, lustrous, and have a reddish color that is quite rare for Tsumeb specimens.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 8.9 × 5.6 × 4.1 cm = 3.50” × 2.20” × 1.61”

Main crystal size: 0.3 × 0.2 cm = 0.12” × 0.08”




Cerussite
 

EC61V9: Very aerial, transparent and bright, twinned crystal. It is implanted on a Quartz matrix rich in small clear green crystals of Smithsonite.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 5.8 × 4 × 4.3 cm = 2.28” × 1.57” × 1.69”

Main crystal size: 4 × 2.8 cm = 1.57” × 1.10”

Minor fluorescence short UV



Cerussite. Front
Front
Cerussite. Rear
Rear
Cerussite.
Cerussite with Duftite
Cerussite with Duftite. Cerussite with Duftite.

Fluorescent light (daylight)
 

ENX98AP2: Cyclic twins of very sharp, transparent and lustrous smoky-colored Cerussite crystals, on matrix, with pale green Duftite microcrystal coatings.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 6 × 4.1 × 3.3 cm = 2.36” × 1.61” × 1.30”

Main crystal size: 2.4 × 1.5 cm = 0.94” × 0.59”




Tennantite with Dolomite and Quartz
 

MM49AJ0: Group of Tennantite crystals, one of them clearly dominant, with very well defined faces and edges, with the forms of a tetrahedron and dodecahedron, and with small, white, Dolomite
A classic from Tsumeb that was in the Enrique Moës collection.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 6.4 × 5.1 × 3.9 cm = 2.52” × 2.01” × 1.54”

Main crystal size: 4.4 × 3.3 cm = 1.73” × 1.30”




Tennantite with Dolomite and Quartz. Front
Front
Tennantite with Dolomite and Quartz. Side
Side
Copper with Cuprite, Calcite and Malachite
Copper with Cuprite, Calcite and Malachite. Front
Front
Copper with Cuprite, Calcite and Malachite. Rear
Rear
Copper with Cuprite, Calcite and Malachite.
 

TJ87AF6: Arborescent growth of native Copper crystals on matrix, with small octahedral Cuprite crystals which are very bright and intensely red. The Copper has coatings of Calcite and Malachite.
The sample is from the Vallecillo collection, Madrid.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 9.5 × 6.3 × 3.8 cm = 3.74” × 2.48” × 1.50”

Main crystal size: 0.8 × 0.7 cm = 0.31” × 0.28”

Former collection of José Luis Vallecillo



Wulfenite
 

TK50V9: Aggregate of tabular crystals very rich in infrequent crystalline forms. Their color is between yellow and orange; they are bright, between translucent and transparent and have a considerable size for the locality. Although the crystals could appear damaged, they are complete, as the 3D version of the image we offer shows.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 4.7 × 4.6 × 2.9 cm = 1.85” × 1.81” × 1.14”

Main crystal size: 2.6 × 2.3 cm = 1.02” × 0.91”




Wulfenite.

DESMOND SACCO COLLECTION

Desmond Sacco is an authority on African as well as worldwide minerals. I met him many years ago at the Munich Show when it was still in the center of Munich and Desmond was one of the stars of the show, buying the best that appeared. His collection was legendary, not only because of the wonders we knew he would certainly have acquired given his position in the mines of the Kalahari Manganese Field (Hotazel, Wessels, N'Chwaning...) and his proximity to the legendary Tsumeb, but also because we saw what he was buying, and thus got an idea of the quality of his collection.

Many years and many mineral Munich shows have now passed and Desmond Sacco has decided to sell some specimens from his collection. We have been fortunate to acquire an important part of this material and with these we can make a virtual trip to the mines and minerals guided by Desmond and his collecting criteria. Here we have the pieces which are still available. To see those that have already been sold you can visit the "Desmond Sacco" page in Reference Specimens

We hope you enjoy these samples, which represent an important part of mineralogy and mineral collecting in Africa.

Jordi Fabre


Cerussite with Mimetite and Malachite
Cerussite with Mimetite and Malachite. Cerussite with Mimetite and Malachite.
 

MR6AC9: Single Cerussite crystal with slightly curved faces and edges, translucent, with a rough aspect on its faces, on matrix with minor Malachite and small yellow Mimetite crystals. The sample is from the Desmond Sacco collection, whose label we’ll send to the buyer.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 9.1 × 8.9 × 6.2 cm = 3.58” × 3.50” × 2.44”

Main crystal size: 3 × 2.6 cm = 1.18” × 1.02”

With handwritten label from the Desmond Sacco Collection



Dioptase with Calcite
 

TF50AC2: Small crystals, very bright, formed by the prism and acute rhombohedral terminations. They selectively occupy the surfaces of some of the faces of the white Calcite rhombohedrons on the matrix.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (±1975)

Specimen size: 6.2 × 5.9 × 2.9 cm = 2.44” × 2.32” × 1.14”

Main crystal size: 0.3 × 0.2 cm = 0.12” × 0.08”

Fluorescent short UV

With handwritten label from the Desmond Sacco Collection



Dioptase with Calcite. Dioptase with Calcite.
Calcite
Calcite.
 

MX16W1: Group of translucent and very bright crystals that combine the forms of a quite flattened rhombohedron and a very short prism. This combination creates an unexpected and curious shape, quite similar to a pyritohedron. The sample is from the Desmond Sacco collection, whose label we'll send to the buyer.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (1970-1985)

Specimen size: 3.4 × 3.4 × 2.2 cm = 1.34” × 1.34” × 0.87”

Main crystal size: 1.5 × 1 cm = 0.59” × 0.39”

Fluorescence short UV & minor fluorescence long UV

With handwritten label from the Desmond Sacco Collection



Calcite
 

TX16R0: Parallel growth of beveled rhombohedral crystals with very well defined faces and edges and having different phases of crystallization underlined by different degrees of transparency.
N'Chwaning II Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province  South Africa

Specimen size: 4.7 × 3.1 × 3.1 cm = 1.85” × 1.22” × 1.22”

Main crystal size: 3.1 × 1.8 cm = 1.22” × 0.71”

Fluorescent short UV

With handwritten label from the Desmond Sacco Collection



Calcite. Front
Front
Calcite. Side
Side
Calcite with Hematite
Calcite with Hematite.
 

ME97R8: Scalenohedral crystal of Calcite with polycrystalline surfaces on its faces. The base is a group of very bright Hematite crystals with very well defined faces and edges.
N'Chwaning II Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province  South Africa (2008)

Specimen size: 6.3 × 6.3 × 3.8 cm = 2.48” × 2.48” × 1.50”

Main crystal size: 5.4 × 4.1 cm = 2.13” × 1.61”

With handwritten label from the Desmond Sacco Collection



Calcite
 

ML67V7: Group of sharp rhombohedral crystals slightly modified by the scalenohedron. The crystals are colorless, bright and between transparent and translucent. The sample is from the Desmond Sacco collection whose label we’ll send to the buyer.
N'Chwaning II Mine, upper levels, Kuruman, Kalahari manganese fields, Northern Cape  South Africa

Specimen size: 6.5 × 6 × 4.9 cm = 2.56” × 2.36” × 1.93”

Main crystal size: 4.5 × 2.6 cm = 1.77” × 1.02”

Fluorescent long & short UV

With handwritten label from the Desmond Sacco Collection



Calcite.
Calcite
Calcite. Front
Front
Calcite. Side
Side
 

TF67S1: Group of crystals, one of them clearly dominant, with very well defined faces and edges, between white and clear, the main one very transparent and with inclusions of crystallized Hematite. The sample is considerably better than the picture shows.
N'Chwaning II Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province  South Africa (1998)

Specimen size: 7.2 × 5.1 × 5 cm = 2.83” × 2.01” × 1.97”

Main crystal size: 4.1 × 3.3 cm = 1.61” × 1.30”

Fluorescence short UV & minor fluorescence long UV

With handwritten label from the Desmond Sacco Collection





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