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Mineral Specimens with Calcite
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4.0 x 3.5 x 2.3 cm. An excellent and showy ball of glassy, pastel-pink strontianite needles aesthetically perched atop a plate of calcite covered with lustrous, colorless calcite scalenohedrons. Classic material from the famous Minerva #1 Mine of Illinois.
5.0 x 3.4 x 2.9 cm. Isolated, gemmy and lustrous, dark emerald-green dioptase crystals to 1.1 cm are aesthetically scattered on the 3-dimensional matrix of gray calcite on this showy and excellent old-timer from the famous Reneville Mine, Republic Of The Congo. The malachite on the calcite is a nice accent. Comes with an old Wards label from Djoue, another name for Reneville. Dioptase of this quality came out in the 1950s and 60s. Ex Charles Hansen Collection, a noted California collector.
4.7 x 4.3 x 2.1 cm. This is a superb miniature of rounded, colorless, calcite rhombs with bright orange hematite inclusions which don’t quite reach the terminations, giving the crystals vivid color zoning highlighted by the transparent edges thus. The crystals are lustrous, translucent, and reach 2.5 cm across. A super fine Tsumeb calcite of a rare habit! Ex. Charlie Key Collection.
8.8 x 7.3 x 4.3 cm. Colorless, glassy and gemmy rhombs of calcite, to 3 cm across, are partially covered by velvety, rich green mottramite. The mottramite hangs like drapery down the calcite cluster and in person looks much more "lively" (for lack of a better word), than the flat green smear it looks like in the photo. The color contrast is wonderful as is the quality of the specimen overall. Ex. Charlie Key Collection.
10.2 x 6.7 x 5.6 cm. Colorless rhombs of gemmy and glassy calcite to 3.0 cm across have received a preferential, thick dusting of reddish-brown, lustrous hematite, presenting a deep red color when all those faces angle forward. Underneath, from the side, you can look into the crystals through the clear colorless windows of the rhombohedral faces. The color contrast is superb and the sculptural form of the piece, very 3-dimensional, is also nice. Ex. Charlie Key Collection.
9 x 9 x 4.3 cm. SHARP, incredibly deep red crystals that are thoroughly infused with microscopic hematite grains, giving them a deep ruddy red color. The piece is pristine and complete 360-degrees except a few very miniscule little nicks. This is a CLASSIC style for Tsumeb. However, large specimens in this condition are very rare. Ex. Charlie Key Collection.
5.0 x 2.9 x 1.9 cm. Shimmering, sparkly balls of kutnohorite form a radial mass on the plate of manganoan calcite, beautiful pink on pastel pink contrast. Ex. Charlie Key.
1.8 x 1.3 x 1.2 cm. One of two thumbnails of a set Charlie had, this is intense red-orange calcite colored so by minute inclusions of chalcotrichite. This is a very rare and desirable habit for the locality, and this is overall a fine, showy thumbnail specimen. Ex. Charlie Key.
8.7 x 4.8 x 2.2 cm. A strange specimen of calcite-coated fluorite perched on amethyst. This is a rare association, and the stark contrast is beautiful and unusual. Ex. Charlie Key.
4.8 x 3.9 x 1.8 cm. Brilliant pyrite on calcite matrix, a beautiful miniature of pyrite which is for whatever reason just a relative rarity from the Kalahari fields! Ex. Charlie Key.
6.2 x 6.2 x 2.9 cm. An interesting and rare combination for the locality where celestine is decidedly uncommon! Beautiful contrast between the two species, as well. Ex. Charlie Key.
7.9 x 6.9 x 5.3 cm. A sharp, complexly twinned calcite crystal, or rather a penetration twin of two twinned calcites! The piece is complete all around except one single side face which is cleaved, and is very dramatic. Also, it’s quite translucent in person! Ex. Charlie Key.
5.7 x 5.2 x 3.7 cm. A very fat, gemmy, phantom crystal with sharp form and a fine termination at one end, cleaved on the bottom only or it would be a floater. This is a rare style for the mine, both for the wedge-shaped crystal, its gemminess, and also for the phantom. Superb, as a display calcite specimen! Ex. Charlie Key.
4.2 x 3.6 x 2.0 cm. A really cute and colorful, sparkling specimen of gemmy and transparent calcite rhombohedra grown over a sparkling carpet of dioptase microcrystals, all in a vug of beautiful pale-blue chrysocolla. Ex. Charlie Key.
2.0 x 1.5 x 1.3 cm. One of two thumbnails of a set Charlie had, this is orange calcite colored so by minute inclusions of chalcotrichite. This is a very rare and desirable habit for the locality, and this is overall a fine, showy thumbnail specimen. Ex. Charlie Key.
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Rob Lavinsky, rob@irocks.com
All Content and Design ©1996-2012 The Arkenstone
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share specimen![Strontianite, Calcite from Minerva No. 1 Mine, Cave-in-Rock, Cave-in-Rock Sub-District, Illinois - Kentucky Fluorspar District, Hardin Co., Illinois, USA [db_pics/mdpics/MD-162816a.jpg]](db_pics/mdpics/MD-162816a.jpg)
![Dioptase, Calcite from Brazzaville (Renéville; Djoué), Brazzaville Department (Renéville Department), Republic of Congo (Brazzaville) [db_pics/mdpics/MD-162979a.jpg]](db_pics/mdpics/MD-162979a.jpg)
![Dioptase, Calcite from Brazzaville (Renéville; Djoué), Brazzaville Department (Renéville Department), Republic of Congo (Brazzaville) [db_pics/mdpics/MD-162979b.jpg]](db_pics/mdpics/MD-162979b.jpg)
![Calcite, Hematite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-163029a.jpg]](db_pics/mdpics/MD-163029a.jpg)
![Calcite, Mottramite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-163070a.jpg]](db_pics/mdpics/MD-163070a.jpg)
![Calcite, Hematite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-163155a.jpg]](db_pics/mdpics/MD-163155a.jpg)
![Calcite, Hematite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-163162a.jpg]](db_pics/mdpics/MD-163162a.jpg)
![Kutnohorite, Calcite (Var: Manganoan Calcite) from Wessels Mine (Wessel's Mine), Hotazel, Kalahari manganese fields, Northern Cape Province, South Africa [db_pics/mdpics/MD-163173a.jpg]](db_pics/mdpics/MD-163173a.jpg)
![Calcite, Cuprite (Var: Chalcotrichite) from Emke Mine, Ogonja (Onganja), Seeis, Windhoek District, Khomas Region, Namibia [db_pics/mdpics/MD-163185a.jpg]](db_pics/mdpics/MD-163185a.jpg)
![Calcite, Fluorite, Quartz (Var: Amethyst) from Mahodari, Nasik District, Maharashtra, India [db_pics/mdpics/MD-163236a.jpg]](db_pics/mdpics/MD-163236a.jpg)
![Pyrite, Calcite from Wessels Mine (Wessel's Mine), Hotazel, Kalahari manganese fields, Northern Cape Province, South Africa [db_pics/mdpics/MD-163242a.jpg]](db_pics/mdpics/MD-163242a.jpg)
![Celestine, Calcite from Wessels Mine (Wessel's Mine), Hotazel, Kalahari manganese fields, Northern Cape Province, South Africa [db_pics/mdpics/MD-163251a.jpg]](db_pics/mdpics/MD-163251a.jpg)
![Calcite from Wessels Mine (Wessel's Mine), Hotazel, Kalahari manganese fields, Northern Cape Province, South Africa [db_pics/mdpics/MD-163262a.jpg]](db_pics/mdpics/MD-163262a.jpg)
![Calcite from Wessels Mine (Wessel's Mine), Hotazel, Kalahari manganese fields, Northern Cape Province, South Africa [db_pics/mdpics/MD-163264a.jpg]](db_pics/mdpics/MD-163264a.jpg)
![Calcite, Dioptase, Chrysocolla from Kaokoveld Plateau, Kunene Region, Namibia [db_pics/mdpics/MD-163270a.jpg]](db_pics/mdpics/MD-163270a.jpg)
![Calcite, Cuprite (Var: Chalcotrichite), Copper from Emke Mine, Ogonja (Onganja), Seeis, Windhoek District, Khomas Region, Namibia [db_pics/mdpics/MD-163283a.jpg]](db_pics/mdpics/MD-163283a.jpg)