Corundum - Mineral specimens search results

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Mineral specimens search results for [ Corundum ]

Complete floater group of doubly terminated Corundum crystals, one of them clearly dominant, with very sharp crystal forms. Translucent, lustrous, and pale brownish green. We will ship the specimen in its original Perky box from the Robert J. (Bob) Noble collection, which also contains the label indicating that it was previously in the Melanson collection.
Transvaal Region South Africa
Specimen size: 1 × 1 × 1.1 cm = 0.39” × 0.39” × 0.43”

TBM26AP8: Corundum

Complete floater Corundum crystal with short prism and well developed pinacoid faces, with sharp edges and very marked triangular growth figures. Translucent, lustrous, and with an intense red color.
Mysore District, Karnataka India
Specimen size: 1.8 × 1.4 × 1 cm = 0.71” × 0.55” × 0.39”

DD89AC7: Corundum

Very thick tabular single crystal on matrix. It is very sharp, has very well defined faces and edges and it is translucent, very bright with an intense and deep blue color.
Pit 298, Ilmen Natural Reserve, Ilmenskie Mountains, Chelyabinsk Oblast, Ural Federal District Russia
Specimen size: 4.8 × 4.6 × 3.4 cm = 1.89” × 1.81” × 1.34”

TC64L1: Corundum

This tabular crystal shows a deep red color, translucent under a light source. With triangular growth striations on the pinacoid.
Ampanihy District, Southwestern Region, Toliara Province (Tuléar) Madagascar
Specimen size: 3.2 × 3.1 × 0.6 cm = 1.26” × 1.22” × 0.24”

FB27: Corundum

On the top of a piece of white matrix sits this deep red Corundum that shows its hexagonal form and especially a six armed star. It is brilliant, it is esthetic, it is aerial and it is perfect. Good choice Martín!
Chit-Ostrov, Murmanskaja Oblast, Northern Karelia (Karel'skaya), Republic of Karelia Russia
Specimen size: 4.5 × 4.2 cm = 1.77” × 1.65”

TP56Z7: Corundum (variety ruby)

Aggregate of crystals with well-defined faces and edges, and their pinacoidal termination is well developed. They are between translucent and transparent, and have a very vivid, intense and uniform color. Jagdalek is a mineralized zone hosted in hydrothermal veins and shear zones within metamorphic rocks, related to beryllium-bearing fluids linked to regional pegmatitic and intrusive activity. In addition to emeralds, the deposit is also known for Corundum (variety ruby) associated with metamorphic and metasomatic processes in aluminum-rich levels. Structurally controlled mineralization with well-formed crystals in fractures and cavities.
Jagdalek Mine, Jagdalek area, Surobi District, Kabul Province Afghanistan
Specimen size: 1.5 × 0.8 × 1.1 cm = 0.59” × 0.31” × 0.43”

Main crystal size: 0.9 × 0.7 cm = 0.35” × 0.28”

TT36I8: Corundum (variety ruby)

Crystals sit on rock matrix and have a near tabular habit. Their terminations have very well marked triangular forms. Color is quite good and they have some degree of transparency, visible under a strong light.
Mysore District, Karnataka India (±1973)
Specimen size: 4.5 × 3 × 2.3 cm = 1.77” × 1.18” × 0.91”

AB29M4: Corundum (variety ruby) with Calcite

Excellent miniature with a really good doubly terminated Ruby crystal, with an excellent development of faces and edges. Brilliance and a certain transparency are well outperformed by the intense, deep and uniform color. On matrix.
Jagdalek Mine, Jagdalek area, Surobi District, Kabul Province Afghanistan (2004)
Specimen size: 2.4 × 1.5 × 1 cm = 0.94” × 0.59” × 0.39”

Main crystal size: 1.2 × 1 cm = 0.47” × 0.39”

MH29L7: Corundum (variety ruby) with Pyrope (variety rhodolite) and Muscovite

Well defined Corundum crystal, translucent and with a color that varies between red (under sunlight) and mauve with bluish tones (under artificial light). Crystal is partially included in a rich Muscovite and Pyrope (variety rhodolite) matrix.
Zazafotsy Quarry, Zazafotsy Commune, Fianarantsoa, Ihosy District, Horombe Region Madagascar (10/2007)
Specimen size: 5.6 × 4.2 × 3.4 cm = 2.20” × 1.65” × 1.34”

MN69K8: Corundum (variety ruby) with Pyrope (variety rhodolite) and Muscovite

A novelty from Munich 2007. Corundum crystal of sharp faces and edges, excellent terminations and good color. It shows different color shades depending of the type of light they receive, and has a marked zonation between red and blue-mauve. On the front crystal face you can see some curious concentric growth figures around a little triangular rhombohedron face. The matrix, very rich in Muscovite, also has abundant red growths of Pyrope (variety rhodolite).
Zazafotsy Quarry, Zazafotsy Commune, Fianarantsoa, Ihosy District, Horombe Region Madagascar (10/2007)
Specimen size: 7.7 × 3.9 × 4.5 cm = 3.03” × 1.54” × 1.77”

Main crystal size: 1.6 × 1.5 cm = 0.63” × 0.59”

MBB190XXX: Corundum on Graphite and Pyrite

Crystal of Corundum, slightly curved and doubly terminated, pink in color, embedded in a Graphite matrix, an uncommon association of mineral species. In addition to the good color contrast between the pink of the Corundum and the dark tone of the Graphite, the piece is further enriched by the stockwork formed by multiple veins mineralized with Pyrite crystals. The specimen comes from well-known graphite mines in Austria, from which specimens are rarely seen either in collections or on the commercial mineral market.
Graphite Mine, Amstall, Mühldorf, Krems-Land, Waldviertel, Lower Austria/Niederösterreich Austria (2020)
Specimen size: 6.8 × 4.4 × 3.0 cm = 2.68” × 1.73” × 1.18”

EQ96F2: Corundum with Anorthite and Phlogopite

This crystal, which has well-defined contours, intense color and brilliance, has grown surrounded by Anorthite. It stands out from the darker matrix, which is very rich in Mica. The Mica has not been analyzed, but information on the locality suggests that it might be ferroan Phlogopite. From the David Lucas collection, number 147, and we will give the buyer his label.
Rai-Iz (Raiz), Tyumen Oblast Russia
Specimen size: 9.6 × 7.5 × 6 cm = 3.78” × 2.95” × 2.36”

Main crystal size: 4 × 3.5 cm = 1.57” × 1.38”

TP37J3: Corundum with Biotite

Doubly terminated prismatic crystal, very rich of faces, combining prism, pyramid and pinacoid. Partly transparent, very bright and with a deep color between red and mauve. On Biotite matrix.
Zazafotsy Quarry, Zazafotsy Commune, Fianarantsoa, Ihosy District, Horombe Region Madagascar (2006)
Specimen size: 5.8 × 3.4 × 4.3 cm = 2.28” × 1.34” × 1.69”

EX88AM1: Corundum with Calcite

Doubly terminated crystals of red Corundum, one of them clearly dominant, with very well defined faces and edges and curvatures on the edges. They are embedded in a gneissic rock matrix.
Mysore District, Karnataka India
Specimen size: 10.4 × 8.7 × 7.6 cm = 4.09” × 3.43” × 2.99”

Main crystal size: 5.4 × 0.7 cm = 2.13” × 0.28”

EH49W7: Corundum with Calcite

Sharp thick tabular spinel-twinned crystal. It is uniformly translucent, with an intense and uniform red color and it is on a Calcite matrix.
Jagdalek Mine, Jagdalek area, Surobi District, Kabul Province Afghanistan
Specimen size: 4.8 × 3.4 × 2 cm = 1.89” × 1.34” × 0.79”

SV2110TDR: Corundum with Mica

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”

MA74I1: Corundum with Muscovite

Crystals are prismatic, very well developed. The main one is doubly terminated, with triangular growth pits on terminations. In addition to its quality and esthetics, we note its variable color mainly blue but with reddish zones. A new find at Munich 2006 because there were not specimens of such high quality from the locality.
Zazafotsy Quarry, Zazafotsy Commune, Fianarantsoa, Ihosy District, Horombe Region Madagascar (2006)
Specimen size: 9.5 × 8.1 × 5 cm = 3.74” × 3.19” × 1.97”

TH77J3: Corundum with Oligoclase and Biotite

Tabular crystals with geometric striations of growth. Color is very intense, especially enhanced when the specimen is under a strong light. Crystals are in a Biotite matrix very rich of Oligoclase. We are very pleased because it has been possible for us to precisely certify the locality of origin, which is not always easy.
This specimen is noted as acquired in 1957 and it is with a label from Burminco (George Burnham) that we’ll send to the buyer.
Kleggassen, Froland, Arendal, Aust-Agder Norway (±1957)
Specimen size: 5.4 × 4.4 × 2.4 cm = 2.13” × 1.73” × 0.94”

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

SV2160TLM: Corundum with Spinel, Willemite, Pyrrhotite and Norbergite

Group of crystals of Corundum, one of them clearly dominant, on a Willemite matrix and with a multitude of pink Spinel crystals distributed randomly throughout the specimen, as well as some dark Pyrrhotite crystals and orange crystalline masses of Norbergite. The sample comes from the old collection of Robert-Auguste Touchon and is accompanied by a handwritten label, very deteriorated due to the passage of time.
Franklin, Franklin Mining District, Sussex County, New Jersey USA
Specimen size: 10.1 × 7 × 6 cm = 3.98” × 2.76” × 2.36”

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