MV91AI5: Very well defined Beryl (aquamarine variety) crystals. They have excellent terminations, are transparent and bright, have a very well defined and uniform sky blue color and are on an Albite matrix with very bright Schorl crystals. Of high quality as is usual with samples from the Desmond Sacco collection.
Erongo Mountain, Usakos, Erongo Region  Namibia (±2016)

Specimen size: 7.3 × 4.4 × 3.9 cm = 2.87” × 1.73” × 1.54”

Main crystal size: 1.7 × 0.6 cm = 0.67” × 0.24”

MA16AI5: Fanlike growths of acicular Hydroxylapatite and Hemimorphite micro-crystals on Tarbuttite crystals, distinguishable by its green color. Of high quality, as is usual with samples from the Desmond Sacco collection.
Skorpion Mine, Rosh Pinah, Lüderitz District, ǁKaras Region  Namibia (2016)

Specimen size: 6.4 × 5.2 × 4.6 cm = 2.52” × 2.05” × 1.81”

Main crystal size: 1.1 × 0.7 cm = 0.43” × 0.28”

MH46AK0: Group of Azurite crystals on matrix with a flat prismatic habit, bright, translucent, a deep color and partially covered by small whitish crystals of Cerussite.
A classic of Tsumeb, from the Desmond Sacco collection whose label we will send to the buyer.
Tsumeb Mine, Easter Pocket, 8 level, Tsumeb, Otjikoto Region  Namibia (1994)

Specimen size: 5.8 × 5 × 5.9 cm = 2.28” × 1.97” × 2.32”

Main crystal size: 2.6 × 2.1 cm = 1.02” × 0.83”

MT88AK4: Very sharp Azurite crystals, deep blue in colour with bright reflections, partially covered by transparent to white Cerussite crystals forming cyclic twins, and accompanied by green microcrystals of Duftite. A classic Tsumeb specimen from the well-known Desmond Sacco collection.
The specimen has been reviewed, photographed and published in the magazine ‘Mineral Up’ on page 58 of the 2019/01 edition.

Tsumeb Mine is one of the world’s most renowned mineral localities. Geologically, it represents a polymetallic replacement deposit hosted by Proterozoic dolostones of the Otavi Group, formed by the interaction of metal-rich hydrothermal fluids with carbonate rocks. This setting produced an exceptionally complex orebody, celebrated for its remarkable mineralogical diversity, particularly secondary minerals of copper, lead, zinc, arsenic, and germanium, with many species first described from this classic locality.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (±1980)

Specimen size: 10 × 7.8 × 5 cm = 3.94” × 3.07” × 1.97”

Main crystal size: 7.1 × 3 cm = 2.80” × 1.18”

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”

TN27S1: Group of crystals forming multiple cyclic twins. They are clear translucent, very bright and on matrix.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (±1987)

Specimen size: 4.6 × 3.9 × 3.5 cm = 1.81” × 1.54” × 1.38”

TE98AC2: Aggregate of cyclic twins with very sharp tabular Cerussite crystals that are transparent, very bright and on a Galena matrix.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (±1985)

Specimen size: 6.9 × 4 × 3.2 cm = 2.72” × 1.57” × 1.26”

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

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”

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”

TX96Q3: A growth of two divergent crystals, one of them doubly terminated, with very well defined faces and edges, pseudomorphic after Azurite and with surface silky fibrous recrystallizations.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 2.7 × 1.8 × 1.6 cm = 1.06” × 0.71” × 0.63”

Main crystal size: 2.7 × 1.2 cm = 1.06” × 0.47”

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”

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”

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, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province  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”

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”

TP27AL0: Spheroidal growth of platy Manganite crystals, very sharp and with great luster.
The specimen is from the Desmond Sacco collection, whose label we will send to the buyer.
N'Chwaning II Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province  South Africa (2002)

Specimen size: 4.6 × 3.9 × 2.5 cm = 1.81” × 1.54” × 0.98”

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

VG97AE5: Druse of Manganite crystals with a thin flattened prismatic shape, some of them doubly terminated, with parallel growths, extraordinarily bright and on matrix.
The sample is from the Desmond Sacco collection, who's label we’ll send to the buyer.
N'Chwaning I Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province  South Africa (±1952)

Specimen size: 5.4 × 3.4 × 3.2 cm = 2.13” × 1.34” × 1.26”

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