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Mineral Specimens with Calcite
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9.9 x 9.4 x 4.4 cm. A lone golden baryte crystal, measuring 5 cm, on a bed of platy calcite, from the Meikle Mine. That strange tip is a completely natural termination, NOT damage, just oddly formed. The baryte is a full centimeter thick. It has fine luster.
7.2 x 5.9 x 4.9 cm. This fascinating specimen formed when gemmy calcite crystals grew in the natural pocket formed by a buried fossil clamshell. The interior of the shell is now completely covered with these fine, golden crystals. Not many fine collector specimens come from Florida, of course!
5.2 x 3.6 x 3.6 cm. A unique-looking calcite specimen from a very little-known Chinese locality, with a style all its own: a bright golden-yellow color, with really lighting up under good light, and striations on the faces that add texture and attractiveness. The specimen has been wonderfully trimmed out to make a fine miniature.
9.3 x 7.0 x 3.5 cm. Boltwoodite is a RARE potassium uranyl silicate. This VERY SHOWY specimen features a horizontal band of radial clusters of super-bright, lemon-yellow boltwoodite needles proudly marching across a large vug covered with smoky-brown calcite scalenohedrons. Ex. Rob Smith Collection.
3.5 x 3.4 x 1.7 cm. Gemmy, sparkly and lustrous, dark cherry-red proustite microcrystals are FESTOONED on both sides of the sculptural, vuggy crust of this CLASSIC, OLD-TIMER from the famed Schneeberg District of the Erzgebirge. The two, glassy, colorless, nail-head calcite crystals are a beautiful compliment to this highly representative and showy "ruby silver" from this historic mining district. There are even some brown siderite crystals on one corner.
2.4 x 0.6 x 0.5 cm. A classic, rose-red, translucent, elongated rhodochrosite scalenohedron from Santa Eulalia, Mexico. The crystal is aesthetically and partially wrapped in tiny calcite crystals. These showy crystals came out 20-30 years ago, with none since. Ex. Dave Stoudt Collection.
17 x 7 x 7 cm. This is simply one of the finest specimens I have come across from this classic 19th-Century locality. The medium-tan Smithsonite forms spectacular and sharp molds after Calcite, all on a firm Limonite matrix. The largest of the complete casts is a whopping 4 cm across, and the aesthetics of these pseudomorphs is quite good. A rare, cabinet sized classic from this old locality. Ex. Charlie Key.
11.5 x 8 x 6 cm. This is a most aesthetic and interesting Wessels specimen. The drusy andradite garnet matrix is home to a complex set of gorgeous mirror-like hematite crystals, the largest of which is 3 cm across! These, in turn, support three terrific white translucent-to-gemmy calcite crystals, the largest of which is 3 cm on edge. The Calcites have excellent luster and a very unusual ratcheted form along some of the edges. On top of that, they have a beautiful and amazing gemmy fluorescence. Ex. Charlie Key.
8 x 4.5 x 3.2 cm. A beautiful and highly lustrous group of Carrollite crystals that fits well into the mold of "classic" for the species and locality. These mirror-like crystals, with their incredibly complex habit, measure up to 1.2 cm across, and are nestled in Calcite. Ex. Charlie Key.
9.7 x 6 x 6 cm. A very interesting combination piece of attractive (great metallic luster!) Pyrites that range from very fine to cubes up to 1 cm. These are intergrown with white, and fluorescent, Calcite crystals. Many of these are doubly-terminated, and they range up to 1.8 cm in length. This is a quality, and distinctive, specimen from an unusual locality. Ex. Charlie Key.
6.3 x 5.1 x 3.7 cm. A very nice combination piece of four pink Kutnohorite crystals, nicely accented by a lovely cluster of light pink Manganoan calcite straws. The Kutnohorite crystals, the largest of which is 4 cm across, have good luster and typical muted pink color. The smallest Kutnohorite is a partial, but it is the most minor component of the specimen and does add visual interest - like "Pac-Man" on a pink nest! Fluorescent!
9 x 8 x 4 cm. A gorgeous 5 cm pocket of super-gemmy and highly lustrous Dioptase crystals generously spread out around the pocket. The sharp crystals range up to about .7 cm, on average. The contrast with the calcite sprinkled atop and the blue chrysocolla around it makes this an awesome display specimen. Ex. Charlie Key.
15.9 x 15.9 x 13.4 cm. A BIG specimen of a type of calcite that came out a long, long time ago from Santa Eulalia and has hence been unavailable - until a recent find. These calcites are instantly recognizable by their strange form: an earlier generation of dark, opaque, hematite-included scalenohedral crystals seeming to emerge from within a later generation of translucent crystals of a lighter color.
9.6 x 9.4 x 6.5 cm. This fascinating specimen formed when gemmy calcite crystals grew in the natural pocket formed by a buried fossil clamshell. The interior of the shell is now full of these golden crystals. This is a large and very complete example of this phenomenon!
11.2 x 9.4 x 6.1 cm. This is an old Lancaster County calcite on matrix, perfect and damage-free. It has striated faces, and slight color tinting due to hematite inclusions. The crystal measures 5 cm tip-to-tip. Ex. Ira F. Smith, III Collection.
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Rob Lavinsky, rob@irocks.com
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share specimen![Baryte, Calcite from Meikle Mine, Bootstrap District, Elko Co., Nevada, USA [db_pics/mdpics/MD-167839a.jpg]](db_pics/mdpics/MD-167839a.jpg)
![Calcite from Rucks Pit, Fort Drum, Okeechobee Co., Florida, USA [db_pics/mdpics/MD-167845a.jpg]](db_pics/mdpics/MD-167845a.jpg)
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![Boltwoodite, Calcite from Rössing Mine, Arandis, Swakopmund District, Erongo Region, Namibia [db_pics/mdpics/MD-167927b.jpg]](db_pics/mdpics/MD-167927b.jpg)
![Proustite, Calcite, Siderite from Schneeberg District, Erzgebirge, Saxony, Germany [db_pics/mdpics/MD-167954a.jpg]](db_pics/mdpics/MD-167954a.jpg)
![Rhodochrosite, Calcite from Santa Eulalia District, Mun. de Aquiles Serdán, Chihuahua, Mexico [db_pics/mdpics/MD-167963a.jpg]](db_pics/mdpics/MD-167963a.jpg)
![Smithsonite, Calcite from Mineral Point, Upper Mississippi Valley District, Iowa Co., Wisconsin, USA [db_pics/mdpics/MD-167964a.jpg]](db_pics/mdpics/MD-167964a.jpg)
![Smithsonite, Calcite from Mineral Point, Upper Mississippi Valley District, Iowa Co., Wisconsin, USA [db_pics/mdpics/MD-167964b.jpg]](db_pics/mdpics/MD-167964b.jpg)
![Calcite, Hematite, Andradite from Wessels Mine (Wessel's Mine), Hotazel, Kalahari manganese fields, Northern Cape Province, South Africa [db_pics/mdpics/MD-167988a.jpg]](db_pics/mdpics/MD-167988a.jpg)
![Calcite, Hematite, Andradite from Wessels Mine (Wessel's Mine), Hotazel, Kalahari manganese fields, Northern Cape Province, South Africa [db_pics/mdpics/MD-167988b.jpg]](db_pics/mdpics/MD-167988b.jpg)
![Carrollite, Calcite from Kamoya South II Mine (Kamoya Sud Mine; Kamoya South Mine), Kamoya, Kambove, Central area, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of Congo (Zaïre) [db_pics/mdpics/MD-168081a.jpg]](db_pics/mdpics/MD-168081a.jpg)
![Carrollite, Calcite from Kamoya South II Mine (Kamoya Sud Mine; Kamoya South Mine), Kamoya, Kambove, Central area, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of Congo (Zaïre) [db_pics/mdpics/MD-168081b.jpg]](db_pics/mdpics/MD-168081b.jpg)
![Pyrite, Calcite from Gloria Mine, Kalahari manganese fields, Northern Cape Province, South Africa [db_pics/mdpics/MD-168105a.jpg]](db_pics/mdpics/MD-168105a.jpg)
![Pyrite, Calcite from Gloria Mine, Kalahari manganese fields, Northern Cape Province, South Africa [db_pics/mdpics/MD-168105b.jpg]](db_pics/mdpics/MD-168105b.jpg)
![Kutnohorite, Calcite (Var: Manganoan Calcite) from Wessels Mine (Wessel's Mine), Hotazel, Kalahari manganese fields, Northern Cape Province, South Africa [db_pics/mdpics/MD-168134a.jpg]](db_pics/mdpics/MD-168134a.jpg)
![Kutnohorite, Calcite (Var: Manganoan Calcite) from Wessels Mine (Wessel's Mine), Hotazel, Kalahari manganese fields, Northern Cape Province, South Africa [db_pics/mdpics/MD-168134b.jpg]](db_pics/mdpics/MD-168134b.jpg)
![Dioptase, Calcite, Chrysocolla from Kaokoveld Plateau, Kunene Region, Namibia [db_pics/mdpics/MD-168143a.jpg]](db_pics/mdpics/MD-168143a.jpg)
![Dioptase, Calcite, Chrysocolla from Kaokoveld Plateau, Kunene Region, Namibia [db_pics/mdpics/MD-168143b.jpg]](db_pics/mdpics/MD-168143b.jpg)
![Calcite from Santa Eulalia District, Mun. de Aquiles Serdán, Chihuahua, Mexico [db_pics/mdpics/MD-168630a.jpg]](db_pics/mdpics/MD-168630a.jpg)
![Calcite from Rucks Pit, Fort Drum, Okeechobee Co., Florida, USA [db_pics/mdpics/MD-168657a.jpg]](db_pics/mdpics/MD-168657a.jpg)
![Calcite from Rucks Pit, Fort Drum, Okeechobee Co., Florida, USA [db_pics/mdpics/MD-168657b.jpg]](db_pics/mdpics/MD-168657b.jpg)
![Calcite from Rheem’s Quarry, Elizabethtown, Mount Joy Township, Lancaster Co., Pennsylvania, USA [db_pics/mdpics/MD-168667a.jpg]](db_pics/mdpics/MD-168667a.jpg)
![Calcite from Rheem’s Quarry, Elizabethtown, Mount Joy Township, Lancaster Co., Pennsylvania, USA [db_pics/mdpics/MD-168667b.jpg]](db_pics/mdpics/MD-168667b.jpg)