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Mineral Specimens with Calcite
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8.6 x 5.0 x 4.0 cm. A VERY RICH and showy silver ore specimen from Guanajuato, Mexico. Moderately crystallized acanthite is liberally covered with nicely contrasting calcite rosettes, pastel-pink dolomite and tiny, sparkly chalcopyrite crystals. All in all, an excellent combination piece from the La Sirena Mine, which is adjacent to and on the same vein as the very famous Rayas Mine. Very little damage, overall. Ex. George Elling Collection.
6.5 x 5.7 x 4.2 cm. A 3.0 cm spray of splendent stibnite blades is aesthetically set in a matrix of stalactitic calcite. The fascinating thing about this excellent piece is that the broken ends of the calcite stalactites reveal the single stibnite needle cores, which the calcite grew around. A revelation, certainly not a detraction. This showy piece is from the famous Herja Mine of Romania. The Maramures County mines are rumored to be closing soon.
15.0 x 7.1 x 5.7 cm. This piece is from a new find at Chenzhou featuring sharp, lustrous, gemmy, pseudo-pyritohedral, very light straw colored crystals on Quartz matrix. The specimen is in great shape overall, and displays very well. I have not seen many of these around, and this is easily of the better pieces I have encountered.
5.6 x 5.3 x 5.1 cm. A classic Vernon Calcite specimen featuring a few very good sized, relatively sharp, semi lustrous, golden color, gemmy, equant, rhombic scalenohedral crystals on minor matrix. The piece is in great shape overall, and displays very well. You don’t see these specimens on the market anymore, and for a mid-west Calcite specimen, it’s pretty darn good.
6.5 x 3.2 x 2.7 cm. This is a great representative Bisbee Calcite consisting of flattened, somewhat curved whitish rhombohedra arranged into small rosette-like aggregates. To top it off, the piece has an elegant dusting of light reddish-brown colored iron oxide on one side. The specimen came from the John Albanese collection, and his label states that is was collected circa 1875 ! A fantastic historic display specimen of this less commonly seen material.
8.7 x 6.6 x 5.1 cm. A SHARP AND CLASSIC rhombohedron, simple in geometry and all the more striking for this, sits perched atop a stalk of mottramite completely covered on all sides by smaller calcites. This is a VERY dramatic specimen, overall! This sharp, simple rhomb is the most desirable form of Tsumeb calcites, to me. But few specimens present so well. Ex. Charlie Key stock.
4.2 x 3.0 x 1.7 cm. A beautiful, classic combo piece with sharp dioptase to 6mm on sparkling, contrasting, crystallized calcite. Ex. Charlie Key stock.
5.2 x 2.9 x 2.8 cm. Another example of the classic Tsumeb combo everybody wants, but this time the dioptase crystals are small and sugary, so it looks like you spilled glitter over the stark white crystallized calcite rhombs! Ex. Charlie Key stock.
4.8 x 3.1 x 3.0 cm. A beautiful, complete-all-around, spherical aggregate of lustrous calcite crystals perched like a beach ball on a seal’s nose. Could not be more perfect aesthetically, and a really elegant example of Tsumeb calcite as well. Ex. Charlie Key stock.
2.9 x 1.8 x 1.7 cm. An incredibly jewel-like, sparkling thumbnail specimen of anything from anywhere. It happens to be a Tsumeb malachite-included calcite, with a little cerussite. But your first thought is that it is a uvarovite garnet, it is just so BRIGHT and sparkling. Glitters like almost nothing you see from Tsumeb. OK, it’s just a thumbnail combo, but what a piece for sheer eye appeal. Ex. Charlie Key stock.
7.6 x 5.5 x 3.9 cm. SHARP rhombohedral calcites to 8 mm, perched on a rolling hillock of velvety mottramite…unusual! Ex. Charlie Key stock.
5.7 x 4.4 x 2.2 cm. Brilliant dioptase crystals to 7mm, perched on contrasting sparkling white calcite matrix. Ex. Charlie Key stock.
An exquisite combination specimen with sharp crystallized copper in elegant sprays atop brilliantly glassy, gemmy, calcite colored in parts by copper inclusions. Both a great calcite and a great copper for the locality! 3.5 x 2.2 x 1.7 cm
7.0 x 4.8 x 4.0 cm. An old-time, very showy, floater calcite scalenohedron from a CLASSIC Scotland locality. The sharp, lustrous and translucent, light-gray crystal is richly included with pyrite microcrystals. This fine specimen is a complete all-around floater, with only a very small contacted area on the back. Ex. E.G. Tribbey and Brent Lockhart Collections.
5.5 x 3.1 x 2.4 cm. A super showy and cute piece of ultra-sparkly, silvery pyrite microcrystals coating a sharp, 2.6 cm calcite rhomb jauntily set on a wedge of banded calcite. A fine Australian piece from the Marty Zinn Collection #2169. MUCH BETTER in person. Rare material from a small find, of which we have seen only a few specimens over the years.
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Rob Lavinsky, rob@irocks.com
All Content and Design ©1996-2012 The Arkenstone
Mineral Specimens by species; or
by specimen id.
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share specimen![Acanthite, Calcite from La Sirena Mine, Guanajuato, Mun. de Guanajuato, Guanajuato, Mexico [db_pics/mdpics/MD-139294a.jpg]](db_pics/mdpics/MD-139294a.jpg)
![Acanthite, Calcite from La Sirena Mine, Guanajuato, Mun. de Guanajuato, Guanajuato, Mexico [db_pics/mdpics/MD-139294b.jpg]](db_pics/mdpics/MD-139294b.jpg)
![Stibnite, Calcite from Herja Mine (Kisbánya), Baia Mare (Nagybánya), Maramures Co., Romania [db_pics/mdpics/MD-139573a.jpg]](db_pics/mdpics/MD-139573a.jpg)
![Stibnite, Calcite from Herja Mine (Kisbánya), Baia Mare (Nagybánya), Maramures Co., Romania [db_pics/mdpics/MD-139573b.jpg]](db_pics/mdpics/MD-139573b.jpg)
![Calcite from Chenzhou Prefecture, Hunan Province, China [db_pics/mdpics/MD-139681a.jpg]](db_pics/mdpics/MD-139681a.jpg)
![Calcite from Chenzhou Prefecture, Hunan Province, China [db_pics/mdpics/MD-139681b.jpg]](db_pics/mdpics/MD-139681b.jpg)
![Calcite from North Vernon, Jennings Co., Indiana, USA [db_pics/mdpics/MD-139753a.jpg]](db_pics/mdpics/MD-139753a.jpg)
![Calcite from Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA [db_pics/mdpics/MD-139754a.jpg]](db_pics/mdpics/MD-139754a.jpg)
![Calcite, Mottramite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-139781a.jpg]](db_pics/mdpics/MD-139781a.jpg)
![Dioptase, Calcite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-139782a.jpg]](db_pics/mdpics/MD-139782a.jpg)
![Dioptase, Calcite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-139782b.jpg]](db_pics/mdpics/MD-139782b.jpg)
![Dioptase, Calcite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-139785a.jpg]](db_pics/mdpics/MD-139785a.jpg)
![Dioptase, Calcite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-139785b.jpg]](db_pics/mdpics/MD-139785b.jpg)
![Calcite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-139787a.jpg]](db_pics/mdpics/MD-139787a.jpg)
![Calcite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-139787b.jpg]](db_pics/mdpics/MD-139787b.jpg)
![Calcite, Malachite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-139794a.jpg]](db_pics/mdpics/MD-139794a.jpg)
![Calcite, Malachite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-139794b.jpg]](db_pics/mdpics/MD-139794b.jpg)
![Calcite, Mottramite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-139799a.jpg]](db_pics/mdpics/MD-139799a.jpg)
![Dioptase, Calcite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-139800a.jpg]](db_pics/mdpics/MD-139800a.jpg)
![Copper, Calcite from Emke Mine, Ogonja (Onganja), Seeis, Windhoek District, Khomas Region, Namibia [db_pics/mdpics/MD-139993a.jpg]](db_pics/mdpics/MD-139993a.jpg)
![Calcite, Pyrite from New Glencrieff Mine (Wanlockhead Mine; East and West branch of New Glencrieff Vein), Wanlockhead, Dumfries & Galloway (Dumfries-shire), Scotland, UK [db_pics/mdpics/MD-140339a.jpg]](db_pics/mdpics/MD-140339a.jpg)
![Pyrite, Calcite from Renison Bell Mine, North Dundas, Zeehan district, Tasmania, Australia [db_pics/mdpics/MD-140346a.jpg]](db_pics/mdpics/MD-140346a.jpg)
![Pyrite, Calcite from Renison Bell Mine, North Dundas, Zeehan district, Tasmania, Australia [db_pics/mdpics/MD-140346b.jpg]](db_pics/mdpics/MD-140346b.jpg)
![Pyrite, Calcite from Renison Bell Mine, North Dundas, Zeehan district, Tasmania, Australia [db_pics/mdpics/MD-140346c.jpg]](db_pics/mdpics/MD-140346c.jpg)