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Mineral Specimens with Calcite
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6 x 5.2 x 3.5 cm. A fine Tsumeb calcite specimen with large crystals (up to 3.3 cm. Good luster, habit, and light salmon pink color. Ex. Willy Israel Collection.
13 x 7.3 x 3.9 cm. The well-developed large blades (up to 4.5 cm) of calcite are almost completely covered by a coating of olive-green Mottramite. A later generation of smaller calcites is perched on the mottramite! Ex. Willy Israel Collection.
5 x 4.9 x 2.5 cm. Three fine crystals of rhombic calcite, the largest being 2.6 cm. The crystals have excellent luster, good clarity and are super sharp. Ex. Willy Israel Collection.
9.4 x 5 x 4 cm. Well-formed calcites cover this specimen. The calcites are lustrous and appear to have a phantom in many, if not almost all, of the crystals. Ex. Willy Israel Collection.
8.4 x 4.6 x 2.1 cm. A fine set of intergrown white rhombs. The even white color, nice luster, and form are very attractive. Ex. Willy Israel Collection.
8.8 x 3.5 x 3.1 cm. Very nice well-formed Calcite rhombs covering about 80% of the matrix. Furthermore, there is a preferential coating of Hematite on only the very edges of each calcite crystal. Ex. Willy Israel Collection.
3.5 x 2.7 x 1.8 cm. The Xonotlite grows in a fibrous to acicular form, and the calcite has superb luster and good clarity on its faces. It is so clear you can see right through to the included xonotlite balls! Ex. Willy Israel Collection.
5.9 x 4.7 x 2.5 cm. Sharp, lustrous calcite crystals with good clarity where the included minute crystals of Gaudfroyite allows. Ex. Willy Israel Collection.
10.7 x 9.1 x 8 cm. An unusual specimen consisting of a mass of foliated manjiroite crystals, altering to todorokite. The cavities are filled with bright glistening calcite crystals! Pretty and unusual! Ex. Willy Israel Collection.
7.0 x 3.9 x 2.2 cm. This specimen starts with a layer of crystallized clear to white calcite rhombohedra upon which sit emerald green, lustrous dioptase crystals up to 3mm; and on top of this are spherules of forest green conichalcite to 3mm. Ex. Willy Israel Collection.
4.5 x 4.0 x 2.7 cm. This stalactite of highly lustrous finely-developed calcites is very nice by itself, but you add the sharp 1 mm balls of Rosasite, and this becomes a dynamite specimen of a rare combination. This one is a 3 cm stalactite, complete all around, perched on a spreading base of more calcite. Ex. Willy Israel Collection.
4 x 3.0 x 2.0 cm. This stalactite of highly lustrous finely-developed calcites is very nice by itself, but you add the sharp 1 mm balls of Rosasite, and this becomes a dynamite specimen of a rare combination. This one is all stalactite, fully complete on the front, though halved in back. Ex. Willy Israel Collection.
4.6 x 3.6 x 2.3 cm. This is an interesting combo of two carbonate minerals. Clear, glassy calcites are perched on fibrous, pink kutnohorite. Ex. Willy Israel Collection.
5 x 3.2 x 1.5 cm. A fine specimen with glassy crystals of sharp rhombohedral calcite heavily included with bright grass-green duftite as opposed to the usual dull, darker green variety. Ex. Willy Israel Collection.
5.5 x 4.5 x 3.5 cm. A fine miniature with a rich mottramite coating on top of "winged" calcite crystals, and then a second generation of crystal-clear, gemmy calcite discs atop the mottramite in between and at the base of the "wings". Ex. Willy Israel Collection.
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Rob Lavinsky, rob@irocks.com
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share specimen![Calcite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-173979a.jpg]](db_pics/mdpics/MD-173979a.jpg)
![Calcite, Mottramite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-173980a.jpg]](db_pics/mdpics/MD-173980a.jpg)
![Calcite, Mottramite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-173980b.jpg]](db_pics/mdpics/MD-173980b.jpg)
![Calcite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-173983a.jpg]](db_pics/mdpics/MD-173983a.jpg)
![Calcite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-173984a.jpg]](db_pics/mdpics/MD-173984a.jpg)
![Calcite (Var: Plumboan Calcite) from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-173985a.jpg]](db_pics/mdpics/MD-173985a.jpg)
![Calcite, Hematite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-173987a.jpg]](db_pics/mdpics/MD-173987a.jpg)
![Calcite, Hematite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-173987b.jpg]](db_pics/mdpics/MD-173987b.jpg)
![Calcite, Xonotlite from Black Rock Mine, Black Rock, Kalahari manganese fields, Northern Cape Province, South Africa [db_pics/mdpics/MD-173989a.jpg]](db_pics/mdpics/MD-173989a.jpg)
![Calcite, Gaudefroyite from N'Chwaning Mines, Kuruman, Kalahari manganese fields, Northern Cape Province, South Africa [db_pics/mdpics/MD-173991a.jpg]](db_pics/mdpics/MD-173991a.jpg)
![Manjiroite, Todorokite, Calcite from Smartt Mine, Kalahari manganese fields, Northern Cape Province, South Africa [db_pics/mdpics/MD-174093a.jpg]](db_pics/mdpics/MD-174093a.jpg)
![Conichalcite, Dioptase, Calcite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-174144a.jpg]](db_pics/mdpics/MD-174144a.jpg)
![Rosasite, Calcite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-174145a.jpg]](db_pics/mdpics/MD-174145a.jpg)
![Rosasite, Calcite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-174146a.jpg]](db_pics/mdpics/MD-174146a.jpg)
![Calcite, Kutnohorite from Wessels Mine (Wessel's Mine), Hotazel, Kalahari manganese fields, Northern Cape Province, South Africa [db_pics/mdpics/MD-174178a.jpg]](db_pics/mdpics/MD-174178a.jpg)
![Duftite, Calcite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-174198a.jpg]](db_pics/mdpics/MD-174198a.jpg)
![Mottramite, Calcite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-174199a.jpg]](db_pics/mdpics/MD-174199a.jpg)