|
Mineral Specimens with Calcite
(click on a page number to go to that page:)
page 112 / 208 - prev - 3120 specimens selected - next
18.0 x 12.0 x 11.0 cm. A fine, old-time, large cabinet calcite specimen from the Joplin Field of Missouri. Two striking, intergrown calcite scalenohedrons to 12.5 cm are beautifully set on a very sculptural silicified limestone matrix that is nicely accented with a field of dolomite rhombs and a rich scattering of lustrous, brassy marcasite crystals. The translucent, amber calcites have gemmy terminations and their bodies are partially overgrown with a second generation of white calcite. The calcites are complete-all-around and the terminations are pristine. Ex. Mullane Collection.
7.8 x 4.8 x 4.3 cm. A beautiful dioptase on calcite specimen from the Tsumeb Mine. Gemmy and lustrous, emerald-green dioptase crystals to 1.0 cm are aesthetically scattered as isolated crystals or in clusters on the highly complimentary, glassy calcite rhombs. Ex. Rob Smith Collection.
3.2 x 2.8 x 2.5 cm. A classic, color-zoned fluorite crystal beautifully highlighted with amber calcite crystals from the Minerva #1 Mine of Illinois. The purple edges really accentuate the golden-yellow interior on this glassy crystal with stepped-growth faces. Ex. Jaime Bird Collection and comes with a 1960s-70s era Ron Sohn label, a well-known Midwest dealer at that time.
The wonderful calcite finds at Durango produce crystals in two forms: scalenohedrons, and these flattened, often twinned crystals. Both forms show a gorgeous silky luster and fine transparency. This is a rather large plate of good crystals. As with most of these, there is damage here and there,but with the profusion of crystals they do not take much away from the visual appeal. 11.2 x 7.5 x 3.0 cm
This is one of two specimens from this locality in this auction - this one, of the OTHER crystal form, the scalenohedron. The larger crystal is 4.75 cm, slanting across a smaller crystal. Both are terminated, and show the beautiful silky luster that makes these calcites so nice. 5.7 x 3.4 x 2.5 cm
As specimens such as this disappear quickly from the market with the mine now closed, you appreciate them more and more. This is a doubly-terminated twin of golden calcite, with both gemmy tips complete, perched right on top of several transparent purple fluorite crystals, which in turn sit on a bed of crystallized sphalerite! The calcite twin measures 8 cm, and shows only a minuscule bit of edge wear on the tip, in fact QUITE minimal considering the vast majority of these show wear. This is a really showy and beautiful Elmwood combo piece! 8 x 8 x 7.4 cm
Mirror-bright pyrite cubes growing one one side, with translucent, blunt-tipped, fine calcite crystals growing on the other - on a matrix of contrasting galena. 5.5 x 3.9 x 3.7 cm
A cute specimen with layers of both drusy dioptase AND duftite ona calcite rhomb! Cleaved on back and a few minor dings to the coating but overall in good shape for display. 3 x 2.9 x 1.3 cm
The Meikle Mine is best known for its barites, of course, but it also turns out these beautiful calcites from time to time. The main crystal, over 5 cm, shows light golden color, good luster, and beautiful striations on its faces. It sits on a bed of smaller calcite crystals, opposite a 4-cm cluster of crystals that balance the one large crystal. 9 x 8.6 x 5.1 cm
8.7 x 7.1 x 4.0 cm. From the Tsumeb Mine comes this calcite specimen, composed of lustrous rhombs to 1.5 cm across. They are aesthetically infused with pink-red inclusions of finely disseminated hematite. This is unusual for the locality, different from the normal hematite-included calcite from Tsumeb, which is brick red. Jack has his collection number 1009 on this, and bought it in the early 1980s from well-known Tsumeb dealer Prosper Williams, whose label is included. Ex. Jack Halpern Collection.
10.7 x 9.7 x 5.3 cm. Slate-gray sharp points of calcite measuring up to 3.1 cm in length are richly encrusted with a drusy iridescent chalcopyrite coating. Not only is there a color contrast but a very nice texture contrast. This is classic material for the Brushy Creek mine, which was worked briefly in the mid-1900s and also in a more recent specimen-mining venture by Joe Kielbaso and friends in the late 1980s. Which find this came from I cannot say. Ex. Jim Minette and Jack Halpern Collections.
3.4 x 3.4 x 2.0 cm. A fine thumbnail of three intergrown balls of very glassy and gemmy, rose-brown to tan, elongated orthorhombic crystals of olmiite perched on a glassy, colorless calcite rhomb from the new, Fall 2008 find at the N’Chwaning II Mine of South Africa.
6.4 x 4.8 x 4.3 cm. A fine calcite and galena combination specimen from the Elmwood Mine. Two intergrown, very glassy and transparent, doubly terminated, colorless calcite crystals are attached to the side of lustrous galena cube.
10.9 x 8.8 x 5.8 cm. Gem-like, very glassy, complex calcite rhombs to 4.8 cm are attractively set on several sides of the box-work matrix on this fine cabinet specimen from the mines at Santa Eulalia, Mexico. The dark brown, smaller, hematite-included calcite rhombs adjacent to the "jewels" are a very nice accent. Older, seldom seen material today. Ex. Mullane Collection.
5.0 x 5.0 x 4.5 cm. A multitude of glassy amethyst points are beautifully and preferentially draped with contrasting calcite crystals on this fine specimen from recent finds at the Valenciana Mine at Guanajuato, Mexico. The two prominent amethysts really set this piece off. Ex. Consie Prince Collection.
(click on a page number to go to that page:)
page 112 / 208 - prev - 3120 specimens selected - next
Rob Lavinsky, rob@irocks.com
All Content and Design ©1996-2012 The Arkenstone
Mineral Specimens by species; or
by specimen id.
|
share specimen![Calcite, Dolomite, Marcasite from Joplin Field, Tri-State District, Jasper Co., Missouri, USA [db_pics/mdpics/MD-231835a.jpg]](db_pics/mdpics/MD-231835a.jpg)
![Dioptase, Calcite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-231840a.jpg]](db_pics/mdpics/MD-231840a.jpg)
![Calcite, Fluorite 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-231852a.jpg]](db_pics/mdpics/MD-231852a.jpg)
![Calcite from Durango, Mexico [db_pics/mdpics/MD-23189a.jpg]](db_pics/mdpics/MD-23189a.jpg)
![Calcite from Durango, Mexico [db_pics/mdpics/MD-23192a.jpg]](db_pics/mdpics/MD-23192a.jpg)
![Calcite, Fluorite, Sphalerite from Elmwood mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith Co., Tennessee, USA [db_pics/mdpics/MD-23208a.jpg]](db_pics/mdpics/MD-23208a.jpg)
![Pyrite, Galena, Calcite from Huanzala Mine, Huallanca District, Dos de Mayo Province, Huánuco Department, Peru [db_pics/mdpics/MD-23218a.jpg]](db_pics/mdpics/MD-23218a.jpg)
![Dioptase, Duftite, Calcite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-23224a.jpg]](db_pics/mdpics/MD-23224a.jpg)
![Calcite from Meikle Mine, Bootstrap District, Elko Co., Nevada, USA [db_pics/mdpics/MD-23231a.jpg]](db_pics/mdpics/MD-23231a.jpg)
![Calcite, Hematite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-232884a.jpg]](db_pics/mdpics/MD-232884a.jpg)
![Calcite, Chalcopyrite from Brushy Creek Mine, Greeley, Viburnum Trend District, Reynolds Co., Missouri, USA [db_pics/mdpics/MD-232886a.jpg]](db_pics/mdpics/MD-232886a.jpg)
![Olmiite, Calcite from N'Chwaning II Mine, N'Chwaning Mines, Kuruman, Kalahari manganese fields, Northern Cape Province, South Africa [db_pics/mdpics/MD-232952a.jpg]](db_pics/mdpics/MD-232952a.jpg)
![Calcite, Galena from Elmwood mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith Co., Tennessee, USA [db_pics/mdpics/MD-232954a.jpg]](db_pics/mdpics/MD-232954a.jpg)
![Calcite from Santa Eulalia District, Mun. de Aquiles Serdán, Chihuahua, Mexico [db_pics/mdpics/MD-232959a.jpg]](db_pics/mdpics/MD-232959a.jpg)
![Quartz (Var: Amethyst), Calcite from Valenciana Mine, Guanajuato, Mun. de Guanajuato, Guanajuato, Mexico [db_pics/mdpics/MD-232975a.jpg]](db_pics/mdpics/MD-232975a.jpg)