|
Mineral Specimens with Calcite
(click on a page number to go to that page:)
page 86 / 208 - prev - 3120 specimens selected - next
8.8 x 5.2 x 5.0 cm. Beautifully gemmy and lustrous, intensely emerald-green dioptase crystals to 7 mm cover vuggy matrix of lustrous, translucent calcite rhombs on this excellent specimen from the Type Locality - Altyn-Tube, Kazakhstan.
7.2 x 6.3 x 5.0 cm. A classic, twinned, translucent, golden-amber calcite crystal from the Delta Carbonate Quarry in York County, Pennsylvania. This lustrous crystal is complete all-around, pristine and has only a contact at the base. Ex. Feist Collection.
An elegant combo specimen featuring a snow-white scalenohedral calcite crystal rising from a base of iridescent chalcocite (probably coated by bornite)! The piece really can be displayed either way, with calcite on top or with the chalcocite on top - to equally dramatic effect. Its not a bad chalcocite but, turned calcite side up, its one of the best calcites I have seen from teh locality as well 8 x 5.5 x 3.8 cm
7.5 x 7.3 x 3.0 cm. A fine, flower bulb-like cluster of blocky, intergrown, translucent, honey-brown calcite rhombs from the famous Berry Materials Quarry in North Vernon, Indiana. Ex. George Feist Collection.
5.8 x 3.7 x 3.0 cm. Spectacular, gem-like calcite scalenohedrons richly and aesthetically cover a bit of matrix on this fine calcite specimen. Ex. Dave and Emily Stoudt Collection.
12.5 x 12.0 x 6.5 cm. A fine cabinet specimen from the La Sirena Mine, Guanajuato, Mexico. Highly lustrous, translucent, modified stepped-growth calcite scalenohedrons to 6.0 cm are scattered as a discrete crystal or in clusters on a contrasting matrix covered with lustrous, brassy pyrite crystals. This mine is on the same vein as the famous Rayas Mine. Ex. Dave Stoudt Collection.
3.9 x 3.4 x 2.2 cm. A fine Bou Azzer cobaltoan calcite with deep pink crystals, reaching just under 1 cm, with pretty pyramidal terminations that have a pretty silky luster. This is a curving, 3-dimensional knob.
A sharp, milky calcite twin perched perfectly on matrix, quite reminiscent of Elmwood calcites in every way except for color (and on the same matrix). There is edge wear at the tips, but the rest of the crystal is damage-free. 10 x 6 x 5.5 cm
Get these beautiful Elmwood specimens while you can! This one features calcite twins scattered like little gems across the matrix, with sphalerite crystals adding a nice color accent, all on a bed of sparkly quartz! Large, showy and beautiful. 13.3 x 6 x 4 cm
Is this not an incredibly elegant Zacatecas specimen? Dove-grey quartz crystals rise in a spray, sprinkled with small milky calcite twins. On the back side, the twins completely cover the quartz crystals - you can even display it from this side if you prefer. 7.5 x 5.3 x 3 cm
A superbly gemmy twin standing up on matrix. The crystal is not complete (the back half is missing where the specimen was removed from matrix), but it is really the other end that shows from the display face. There is a shallow contact where the crystal grew against something on the front side of the crystal. 8.5 x 8 x 6.5 cm
Very unusually shaped, lustrous, translucent and lightly etched colorless calcite crystals from Charcas, Mexcio. This specimen even has a curved calcite crystal! One usually expects to see poker chip calcites from Charcas, which makes this piece quite uncommon. There are a couple of cleaved calcite crystals below the curved crystal, but you dont even really notice them. Front and back views are given of this excellent specimen with truly inctricte geometry. From my personal calcite collection, purchased over a dozen years ago when these were still more readily available 6.8 x 5.4 x 3.6 cm
With the Elmwood closed, it is just a matter of time before specimens of this magnitude are taken very seriously. I mean, how many other mines could produce a beautiful, well-formed 13-cm doubly-terminated calcite twin on a rather pretty matrix! One of the photos was shot with a hand in it to show the size. The calcite is complete all the way around, and most of it stands up and off the sphalerite matrix; it is attached to the matrix just enough to provide a perfect “stand” for the calcite. Fans of Elmwood specimens will know that large Elmwood pieces almost always have some damage, and the calcite here does have a ding/wear on the upper tip, but it is not large relative to the size of the specimen. The lower termination, on the other hand, is in wonderful condition, with multiple sharp, gemmy peaks. There is one cleave on one of these points that is not easy to recognize as a cleave, as it is clean and along a cleavage plane. Other than that, just a bit of whitish bruising on one edge that can be easily oiled out if you wish is about all there is in the way of damage. A big, showy and impressive specimen to be sure! 19 x 14 x 8 cm
This beautiful specimen formed when gemmy calcites grew in the natural vug created by a buried clamshell. A long strip of the hinge area of the shell forms the perch for crystals growing all along the inside, rising up dramatically past the remains of the fossil in several clusters that MERGE and then rise together to form a crown atop! Very elegant and sculptural ! 8 x 3.5 x 3 cm
These stunning calcites first came out as clusters of two or three little crystals several years back, and caused quite a stir, with people paying two or three hundred dollars for the little clusters from a drawer in a hotel room. Fortunately, that was not the end of the find. And now, once in a while, you get a museum-sized shocker like this: gorgeous, silky scalenohedral crystals to 7.5 cm (1), with beautiful bevels, jutting dramatically from the matrix. As a bonus, at one side of this specimen are THREE butterfly twins to 5 cm "wingspan" - the other major form from this find - right next to one another, with faces that make them look like cut glass! One of the scalenohedral crystals is growing through the flat blade of a twin. The large crystals rise above a field of smaller, equally pretty crystals. Aside from expected peripheral damage at the edges, there is only one missing crystal in the center display area that I can see, not much of a detraction on such a large, grand specimen! 25 x 23 x 13 cm
(click on a page number to go to that page:)
page 86 / 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![Dioptase, Calcite from Altyn-Tyube (Altyn-Tube) deposit, Kirghiz Steppes (Asiatic Steppes), Qaraghandy Oblysy (Karaganda Oblast'), Kazakhstan [db_pics/mdpics/MD-192719a.jpg]](db_pics/mdpics/MD-192719a.jpg)
![Dioptase, Calcite from Altyn-Tyube (Altyn-Tube) deposit, Kirghiz Steppes (Asiatic Steppes), Qaraghandy Oblysy (Karaganda Oblast'), Kazakhstan [db_pics/mdpics/MD-192719b.jpg]](db_pics/mdpics/MD-192719b.jpg)
![Calcite from Roosevelt Avenue Quarry (York Stone Quarry), York, York Co., Pennsylvania, USA [db_pics/mdpics/MD-192728a.jpg]](db_pics/mdpics/MD-192728a.jpg)
![Calcite from Qarsaqbay (Karsakpay; Karsakpai; Karsakpaj), Zhezqazghan Oblysy (Dzezkazgan Oblast'; Dzhezkazgan Oblast'; Djezkazgan Oblast'; Jezkazgan Oblast'), Kazakhstan [db_pics/mdpics/MD-19314a.jpg]](db_pics/mdpics/MD-19314a.jpg)
![Calcite from Berry Materials Corp. Quarry (North Vernon Plant), North Vernon, Jennings Co., Indiana, USA [db_pics/mdpics/MD-193810a.jpg]](db_pics/mdpics/MD-193810a.jpg)
![Calcite from Hercules Mine (Negra Mine), La Negra, Mun. de Carmargo, Chihuahua, Mexico [db_pics/mdpics/MD-193821a.jpg]](db_pics/mdpics/MD-193821a.jpg)
![Calcite, Pyrite from La Sirena Mine, Guanajuato, Mun. de Guanajuato, Guanajuato, Mexico [db_pics/mdpics/MD-193824a.jpg]](db_pics/mdpics/MD-193824a.jpg)
![Calcite (Var: Cobaltoan Calcite) from Bou Azzer, Bou Azzer District, Tazenakht, Ouarzazate Province, Souss-Massa-Draâ Region, Morocco [db_pics/mdpics/MD-194080a.jpg]](db_pics/mdpics/MD-194080a.jpg)
![Calcite 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-19441a.jpg]](db_pics/mdpics/MD-19441a.jpg)
![Calcite from Elmwood mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith Co., Tennessee, USA [db_pics/mdpics/MD-19444a.jpg]](db_pics/mdpics/MD-19444a.jpg)
![Calcite from Zacatecas, Mexico [db_pics/mdpics/MD-19445a.jpg]](db_pics/mdpics/MD-19445a.jpg)
![Calcite from Elmwood mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith Co., Tennessee, USA [db_pics/mdpics/MD-19446a.jpg]](db_pics/mdpics/MD-19446a.jpg)
![Calcite from Charcas, Mun. de Charcas, San Luis Potosí, Mexico [db_pics/mdpics/MD-19458a.jpg]](db_pics/mdpics/MD-19458a.jpg)
![Calcite from Elmwood mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith Co., Tennessee, USA [db_pics/mdpics/MD-19469a.jpg]](db_pics/mdpics/MD-19469a.jpg)
![Calcite from Rucks Pit, Fort Drum, Okeechobee Co., Florida, USA [db_pics/mdpics/MD-19471a.jpg]](db_pics/mdpics/MD-19471a.jpg)
![Calcite from Durango, Mexico [db_pics/mdpics/MD-19478a.jpg]](db_pics/mdpics/MD-19478a.jpg)