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Mineral Specimens with Calcite
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6.2 x 4.9 x 4.9 cm. A superb specimen of bright pink calcite of the cobaltoan variety, prized for its rich color. This specimen features large, gemmy crystals.
6.4 x 2.8 x 2.2 cm. A superb specimen of bright pink calcite of the cobaltoan variety, prized for its rich color. This specimen features a field of spiky crystals with sugary faces.
19.9 x 1.4 x 6.4 cm. A very large and superb Sweetwater Mine calcite specimen. On a large shard of matrix covered with little dolomites and galenas is a pristine, 12-cm calcite crystal - with sharp, gemmy terminations, fine luster and no damage or contacts. It sits on a ridge of the matrix, and is canted at a pleasing angle. Ex. George Feist collection.
10.8 x 5.6 x 3.4 cm. You may be familiar with these spiky calcites from Santa Eulalia; but here, they are in a rare association with sharp cubes of colorless fluorite, as well as a later generation of tiny, sparkly, gemmy little calcites. Ex. Stoudt Collection.
10.1 x 8.8 x 4.9 cm. Here you have amethyst of the form that sometimes forms the so-called "flowers" from Irai - but at the other end, two complete, rounded calcite crystals alternating a light golden color with snowy white. The white could be a mineral inclusion, but appears to possibly be from intense surface crackling during the growth of the crystal that was then enclosed by later growth. Ex. Richard Hauck Collection.
A classic, old-time, large and lustrous calcite crystal included with and coated by copper from the famous Quincy Mine of Michigan. A very rich in copper calcite crystal with sharp serrated terminations. Ex Cranbrook Institute through the Dan Ehrling Collection. 8.5 x 7.0 x 3.7 cm
A stunning and aesthetic cluster of lustrous, etched calcite scalenohedrons to 3.7 cm on chalcedony matrix from Irai, Brazil. Lots of Irai calcite around, but this specimen is way above average. 7.8 x 5.8 x 4.6 cm
A fine Elmwood twin, with good amber color and both tips complete. It has superb form and a pleasing orangey color! The clean, equant twinning plane is in the middle of the crystal. No more of these coming out! 7.8 x 4 x 2.5 cm
7.1 x 7.0 x 4.2 cm. An unusual Kelly Mine piece in that it has an association preserved, whereas most never had associated minerals to begin with or the other minerals were dissolved off in the old days by cleaning these in acid. The calcite is so elegant and curvy I mistook it (as did the previous owner) for selenite. The identity of the calcite has been confirmed. The crystals are complete and elegantly perched, on the stark blue contrast.
6.5 x 5.7 x 4.2 cm. This specimen features an approximately 6 cm crystal with natural blue-toned color, perched in calcite. Adjacent is a broken, but colorful, tanzanite crystal to the left that balances the piece nicely. The main crystal is a little rough at the termination but it is complete, just contacted. The calcite contrast is unusual and enhances the color. Very 3-dimensional, interesting specimen.
10.2 x 6.7 x 3.7 cm. This is a glowing pink, neon-colored cluster of cobaltoan calcite. The crystals are naturally bright and lustrous, multifaceted. The piece just sparkles. This is a large and showy example from the finds of the late 1980s that simply still are among the most colorful mineral specimens ever found. Ex. Rob Lavinsky Collection.
4.4 x 4.0 x 2.5 cm. A very rare example of the highly desirable Bisbee green calcites, richly included by malachite. Most are a nice pastel green but this one is evergreen-colored, the richest green hue I have seen in one of these specimens. It is translucent, sparkling and gorgeous.
8.8 x 4.4 x 2.7 cm. A major specimen of Mexican silver species, with sharp polybasite crystals that are literally the size and aspect of Swiss hematites. Apparently the piece turned up at a small show, having come directly from a miner in Mexico up to the show and missing the normal channels such major pieces often get funneled into. The calcite is a wonderful accent, and I cannot ever recall seeing another Mexican specimen of polybasite with such sheer, amazing contrast. The sparkling drusy calcite highlights the metallic, lustrous blades so nicely. Small barrel-like stephanites are in association as well (on the back) according to Dr. Terry Wallace who examined the specimen for me at the Denver show. He confirmed for me that the piece came from this small shaft adjoining two slightly different deposits, an aberration which is the reason why you have the calcite and the polybasite in the same place at the same time…normally not seen. This is an important Mexican specimen, and an important silver species specimen.
8.2 x 5.8 x 5.5 cm. This Tsumeb dioptase is a very elegant and sculptural piece, with gemmy crystals to over 1 cm, perched on an attractive matrix. The matrix is coated with sparkling, drusy calcite for contrast. Ex. George Elling Collection.
8.0 x 8.0 x 6.4 cm. A sculptural pair of doubly terminated calcite crystals aesthetically attached to blocky galena and chalcopyrite matrix from the Sweetwater Mine of Missouri’s Viburnum Trend. The lustrous calcite crystals, to 7.6 cm, have faint interior phantoms, colorless mid-sections and beautifully gemmy amber tips. Ex. Dr.Richard Heck and George Feist Collections.
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Rob Lavinsky, rob@irocks.com
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share specimen![Calcite (Var: Cobaltoan Calcite) from Bou Azzer, Bou Azzer District, Tazenakht, Ouarzazate Province, Souss-Massa-Draâ Region, Morocco [db_pics/mdpics/MD-196795a.jpg]](db_pics/mdpics/MD-196795a.jpg)
![Calcite (Var: Cobaltoan Calcite) from Bou Azzer, Bou Azzer District, Tazenakht, Ouarzazate Province, Souss-Massa-Draâ Region, Morocco [db_pics/mdpics/MD-196797a.jpg]](db_pics/mdpics/MD-196797a.jpg)
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![Calcite, Fluorite from Santa Eulalia District, Mun. de Aquiles Serdán, Chihuahua, Mexico [db_pics/mdpics/MD-196860a.jpg]](db_pics/mdpics/MD-196860a.jpg)
![Calcite, Quartz (Var: Amethyst) from Iraí, Alto Uruguai region, Rio Grande do Sul, South Region, Brazil [db_pics/mdpics/MD-196863a.jpg]](db_pics/mdpics/MD-196863a.jpg)
![Calcite from Quincy Mine, Hancock, Houghton Co., Michigan, USA [db_pics/mdpics/MD-19693a.jpg]](db_pics/mdpics/MD-19693a.jpg)
![Calcite from Iraí, Alto Uruguai region, Rio Grande do Sul, South Region, Brazil [db_pics/mdpics/MD-19697a.jpg]](db_pics/mdpics/MD-19697a.jpg)
![Calcite from Elmwood mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith Co., Tennessee, USA [db_pics/mdpics/MD-19730a.jpg]](db_pics/mdpics/MD-19730a.jpg)
![Smithsonite, Calcite from Kelly Mine, Magdalena District, Socorro Co., New Mexico, USA [db_pics/mdpics/MD-197408a.jpg]](db_pics/mdpics/MD-197408a.jpg)
![Zoisite (Var: Tanzanite), Calcite from Merelani Hills (Mererani), Lelatema Mts, Arusha Region, Tanzania [db_pics/mdpics/MD-197414a.jpg]](db_pics/mdpics/MD-197414a.jpg)
![Calcite (Var: Cobaltoan Calcite) from Mashamba West Mine, Kolwezi, Western area, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of Congo (Zaïre) [db_pics/mdpics/MD-197416a.jpg]](db_pics/mdpics/MD-197416a.jpg)
![Calcite, Malachite from Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA [db_pics/mdpics/MD-197427a.jpg]](db_pics/mdpics/MD-197427a.jpg)
![Polybasite, Calcite, Stephanite from Fresnillo de Gonzalez Echeverria (Fresnillo), Mun. de Fresnillo, Zacatecas, Mexico [db_pics/mdpics/MD-197429a.jpg]](db_pics/mdpics/MD-197429a.jpg)
![Polybasite, Calcite, Stephanite from Fresnillo de Gonzalez Echeverria (Fresnillo), Mun. de Fresnillo, Zacatecas, Mexico [db_pics/mdpics/MD-197429b.jpg]](db_pics/mdpics/MD-197429b.jpg)
![Dioptase, Calcite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-197439a.jpg]](db_pics/mdpics/MD-197439a.jpg)
![Calcite, Galena from Sweetwater Mine (Milliken Mine; Frank R. Milliken; Blair Creek; Ozark Lead Company Mine; Adair Creek; Logan Creek), Ellington, Viburnum Trend District, Reynolds Co., Missouri, USA [db_pics/mdpics/MD-197775a.jpg]](db_pics/mdpics/MD-197775a.jpg)