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Mineral Specimens with Calcite
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8.9 x 6.2 x 2.6 cm. Scheelite is a rare associate in the Romanian polymetallic deposits. The Paar collection has several nice examples of this material, of which this is a superb larger specimen (not so common), and with crystallized calcite matrix. The crystals reach 1.1 cm in size (1.1 and 0.9 cm) and are pristine on the front display faces as shown (although each is contacted on the edge facing to left or right). They show an intense deep blue color when backlit. Ex. Dr. Werner Paar Collection.
9.9 x 5.2 x 3.1 cm. Chalcostibite on tetrahedite, quartz and sharp disc-shaped calcite, possibly associated with (?) zinkenite. Featuring beautifully lustrous crystals of crystals of Chalcostibite up to 5 mm; arranged in clusters on tetrahedite. Ex. Dr. Werner Paar Collection.
6.4 x 4.6 x 0.6 cm. Kongsberg silver specimens are not as rare as we would often like to think. However, Kongsberg silvers with such character, and such intricate curling for the size, with calcite association no less...this is not so common. The lustrous, bright calcite crystals provide a contrast and an accent both, helping to give this piece a bit of life and 3-dimensionality because the eye tries to place them "on the tree" in 3 dimensions. Ex. Kevin Ward Collection.
7.3 x 4.8 x 4.3 cm. Bright pink scalenohedral crystals of this calcite varietal prized for their striking color (it’s the cobalt content that gives it the color); some of these are deep pink and others are a more sugary, light pink, so there is a pretty bi-colored effect here.
5.4 x 3.8 x 2.3 cm. A cluster of scalenohedral calcites, with one main crystal, is lit up by the shocking red of a 1.1-cm crystal of realgar (terminated one end) along with some smaller ones.
5.1 x 3.2 x 2.8 cm. A striking old Joplin combination specimen, featuring a translucent calcite twin that has wrapped itself around a cube of galena.
6.6 x 4.7 x 4.1 cm. A very aesthetic and unique, "pagoda-style", calcite specimen from recent finds at the Daye Mine of China. A sharp, highly lustrous, hematite-tinted, 4.2 cm, hexagonal, "pokerchip", crowns the 3-sided, stair-stepped scalenohedron. The interesting goethite plate, at the base, is a nice accent and looks like an emblem or plaque. This very fine calcite specimen is complete all-around and is very nearly pristine. Ex. Karl Warning Collection.
7.7 x 7.0 x 3.5 cm. A fine and aesthetic, highly lustrous cluster of gray calcite crystals beautifully accented with sparkly, iridescent marcasite from the famous Brushy Creek Mine of Missouri’s Viburnum Trend. A second generation of highly lustrous, nearly transparent, gray calcite coats the first generation of calcite and partially envelopes the marcasite on several of the calcite crystals. The super, 5.5 cm, doubly terminated, scalenohedron in the front, with the recessed bed of iridescent marcasite and an interior phantom on the left side is stunning. Ex. Karl Warning Collection and from an older, 1960s-1970s era Dallas collection.
4.8 x 4.6 x 3.6 cm. A beautiful, divergent cluster of 6, translucent, frosted, micro step-faced, amber calcite scalenohedrons aesthetically set atop nicely contrasting, greenish tinted basalt matrix from Irai, Brazil. The small calcite rhombs perched on both sides of the basalt are a nice accent. Ex. Karl Warning Collection and purchased from Ikon Mining at Tucson in 1991.
6.2 x 4.6 x 4.4 cm. A superb, super rich and fat specimen loaded with thick nests of spinel-twinned silver crystals on calcite from the early 1980s finds at the New Nevada Mine at Batopilas, Mexico. Most silvers from this find were in very thin calcite veins, so this one is exceptional in its thickness. The fat, isolated, spinel spear-point is 1.6 cm. Ex. Dave Stoudt Collection and purchased in 2003.
9.1 x 6.3 x 5.6 cm. Rosasite is a less common, but highly desirable zinc, copper carbonate from the Tsumeb Mine. This rich, well-shaped and fine combination specimen features vuggy, 3-dimensional matrix with blue-green, botryoidal rosasite in clusters or as individuals dispersed amongst nicely contrasting, sparkly, blocky calcite rhombs. Ex. Rob Smith Collection.
5.9 x 2.5 x 2.5 cm. A superb, sculptural and aesthetic specimen from the Shangbao Mine of China. A 3.3 cm, doubly terminated, glassy, translucent, golden-amber calcite crystal is perched atop an etched and contacted sliver of colorless to faintly, light purple fluorite. Ex. Brent Lockhart Collection.
4.1 x 2.5 x 2.3 cm. This beautiful matrix miniature hosts a 20 x 7 x 6 mm gem emerald crystal perched on contrasting white calcite, from the emerald mines of Colombia. This is not repaired, and not placed in the matrix, as you can clearly see the calcite grew around the crystal. At 2 cm, the crystal is good-sized. The color is intense and deep, vibrantly green. The association with crystallized calcite, instead of with rock or massive calcite matrix, though, really makes this specimen.
7.5 x 6.8 x 5.1 cm. From the Sussman Tsumeb collection, a pretty and interesting cluster of sharp-edged, rounded calcites frosted with a pretty covering of microcrystalline duftite. Close inspection reveals some tiny bright green malachite crystals.
6.8 x 5.5 x 4.0 cm. A lustrous cluster of transparent modified scalenohedrons of calcite from Dal’negorsk. All six of the main crystals are in perfect condition, with fine terminations.
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Rob Lavinsky, rob@irocks.com
All Content and Design ©1996-2012 The Arkenstone
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share specimen![Scheelite, Calcite from Baia Sprie (Felsöbánya), Maramures Co., Romania [db_pics/mdpics/MD-206854a.jpg]](db_pics/mdpics/MD-206854a.jpg)
![Scheelite, Calcite from Baia Sprie (Felsöbánya), Maramures Co., Romania [db_pics/mdpics/MD-206854b.jpg]](db_pics/mdpics/MD-206854b.jpg)
![Chalcostibite, Tetrahedrite, Calcite from Boldut Mine, Cavnic (Kapnic; Kapnik), Maramures Co., Romania [db_pics/mdpics/MD-206901a.jpg]](db_pics/mdpics/MD-206901a.jpg)
![Chalcostibite, Tetrahedrite, Calcite from Boldut Mine, Cavnic (Kapnic; Kapnik), Maramures Co., Romania [db_pics/mdpics/MD-206901b.jpg]](db_pics/mdpics/MD-206901b.jpg)
![Silver, Calcite from Kongsberg, Buskerud, Norway [db_pics/mdpics/MD-206929a.jpg]](db_pics/mdpics/MD-206929a.jpg)
![Calcite (Var: Cobaltoan Calcite) from Bou Azzer, Bou Azzer District, Tazenakht, Ouarzazate Province, Souss-Massa-Draâ Region, Morocco [db_pics/mdpics/MD-207246a.jpg]](db_pics/mdpics/MD-207246a.jpg)
![Calcite, Realgar from Jiepaiyu Mine (Shimen Mine), Shimen As-(Au) deposit, Shimen Co., Changde Prefecture, Hunan Province, China [db_pics/mdpics/MD-207264a.jpg]](db_pics/mdpics/MD-207264a.jpg)
![Calcite, Realgar from Jiepaiyu Mine (Shimen Mine), Shimen As-(Au) deposit, Shimen Co., Changde Prefecture, Hunan Province, China [db_pics/mdpics/MD-207264b.jpg]](db_pics/mdpics/MD-207264b.jpg)
![Calcite, Galena from Joplin Field, Tri-State District, Jasper Co., Missouri, USA [db_pics/mdpics/MD-207327a.jpg]](db_pics/mdpics/MD-207327a.jpg)
![Calcite from Fengjiashan Mine (Daye Copper mine), Edong Mining District, Daye Co., Huangshi Prefecture, Hubei Province, China [db_pics/mdpics/MD-207331a.jpg]](db_pics/mdpics/MD-207331a.jpg)
![Calcite, Marcasite from Brushy Creek Mine, Greeley, Viburnum Trend District, Reynolds Co., Missouri, USA [db_pics/mdpics/MD-207333a.jpg]](db_pics/mdpics/MD-207333a.jpg)
![Calcite from Iraí, Alto Uruguai region, Rio Grande do Sul, South Region, Brazil [db_pics/mdpics/MD-207334a.jpg]](db_pics/mdpics/MD-207334a.jpg)
![Silver, Calcite from New Nevada Mine (Nevada Valenciana), Cerro San Antonio, San Miguel, Batopilas, Andres del Rio District, Mun. de Batopilas, Chihuahua, Mexico [db_pics/mdpics/MD-207503a.jpg]](db_pics/mdpics/MD-207503a.jpg)
![Rosasite, Calcite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-207523a.jpg]](db_pics/mdpics/MD-207523a.jpg)
![Calcite, Fluorite from Shangbao Pyrite mine, Leiyang Co., Hengyang Prefecture, Hunan Province, China [db_pics/mdpics/MD-207541a.jpg]](db_pics/mdpics/MD-207541a.jpg)
![Beryl (Var: Emerald), Calcite from Muzo Mine, Muzo, Vasquez-Yacopí Mining District, Boyacá Department, Colombia [db_pics/mdpics/MD-208645a.jpg]](db_pics/mdpics/MD-208645a.jpg)
![Calcite, Duftite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-208674a.jpg]](db_pics/mdpics/MD-208674a.jpg)
![Calcite from Dal'negorsk (Dalnegorsk; Tetyukhe; Tjetjuche; Tetjuche), Primorskiy Kray, Far-Eastern Region, Russia [db_pics/mdpics/MD-208686a.jpg]](db_pics/mdpics/MD-208686a.jpg)