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Mineral Specimens with Calcite
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10.0 x 5.4 x 4.9 cm. Supremely splendent, intergrown, smoke-gray goethite balls richly cover both sides of the cabinet gossan matrix and are nicely complimented by the lustrous, hematite-tinted calcite rhombs on this fine specimen from Bisbee. Ex. Dennis Mullane Collection.
7.0 x 3.4 x 2.5 cm. Vivid pink to purple, translucent, botyroidal cobaltoan calcite encrusts poorly sorted conglomerate matrix on this striking and pretty old-time specimen from a long-closed Spanish locale - the Solita Mine in Catalonia. Rare and seldom available. Ex. Dennis Mullane Collection and comes with an old faded label.
8.7 x 5.6 x 3.2 cm. Like an aqua-blue ocean lapping up on an ocherous island beach, lustrous and translucent rhombs of calcite, to 1.7 cm across, have been colored a rich blue by fibrous inclusions of aurichalcite. It is surely one of the most impressive pieces overall for color intensity, crystal definition, and overall aesthetics in this size range. When closely examining the calcite, it is possible to see the fibrous aurichalcite crystals preserved inside, thus showing that this is intergrowth, as much or more so than simple inclusions. Some crystals of calcite may be more aurichalcite than calcite now. The color is , truly, mesmerizing. The color and lustre both are better in person because we had the camera compromise to try to get each in some degree.
6.4 x 5.2 x 2.7 cm. A plate of intergrown, lustrous and translucent calcite rhombs, to 2.0 cm across, is emplaced on an ocherous matrix. The crystals are heavily included by fibrous aurichalcite which has turned them a rich blue color. This is one of the richest overall plates of solid colored crystals from the find. When closely examining the calcite, it is possible to see the fibrous aurichalcite crystals preserved inside, thus showing that this is intergrowth, as much or more so than simple inclusions. Some crystals of calcite may be more aurichalcite than calcite now. The color is, truly, mesmerizing. The color and lustre both are better in person because we had the camera compromise to try to get each in some degree.
6.0 x 5.2 x 3.7 cm. Emplaced on a limonite matrix are spherules of pastel blue aurichalcite, to .7 cm across. Aesthetically perched on the aurichalcite, are bladed, fan -like crystals of glassy and gemmy, colorless, calcite, to nearly 3 cm across. Absolutely striking. This was an unusual habit in the pocket.
5.7 x 5.1 x 4.0 cm. Equant, lustrous and translucent rhombs of calcite, to 1.7 cm across, have been differentially included by fibrous aurichalcite, resulting in a two-tone blue appearance. These crystals are perched on fibrous, pastel blue aurichalcite, which, in turn, is emplaced on ocherous limonite matrix. An excellent example of calcite from this find, more than most pieces which are simply for color or the lure of the association.
7.3 x 5.4 x 4.0 cm. This matrix specimen contains the largest rhombs of equant, lustrous and translucent calcite, we have obtained. They reach 3.2 cm on edge and 4 cm across. The large crystal actually exhibits stepped growth. Differential inclusions of fibrous, aurichalcite have given the crystals a two-tone, blue coloration. Simply outstanding geometry and the shocking blue color inside otherwise colorless calcite make this a good specimen. Few calcite rhombohedra of such size were recovered, and this stands out very nicely in the lot as an excellent example of calcite from this find, more than most pieces which are simply for color or the lure of the association.
7.0 x 4.2 x 4.2 cm. A very rich, intensely colored cluster of equant, lustrous and translucent calcite rhombs, to 1.8 cm, is emplaced on ocherous limonite. The crystals, are, in turn, colored a rich blue by fibrous inclusions of aurichalcite. This is one of the richest overall plates of solid colored crystals from the find. When closely examining the calcite, it is possible to see the fibrous aurichalcite crystals preserved inside, thus showing that this is intergrowth, as much or more so than simple inclusions. Some crystals of calcite may be more aurichalcite than calcite now. The color is, truly, mesmerizing. The color and lustre both are better in person because we had the camera compromise to try to get each in some degree.
2.1 x 1.9 x 0.7 cm. Perched aesthetically on smaller rhombs is a 1.8 cm across, tabular rhomb of lustrous and translucent calcite that has been included by a lovely blue, fibrous aurichalcite. A superb thumbnail.
2.7 x 2.0 x 1.9 cm. Bright blue, fibrous aurichalcite has been included in rhombs of lustrous and translucent calcite, to 1.1 cm across. An elegant, aesthetic cluster, complete-all-around, this is a superb thumbnail specimen.
3.7 x 2.9 x 1.1 cm. This is, very simply, a huge, well formed rhomb of lustrous and translucent calcite that has been richly included by fibrous, richly colored blue aurichalcite.
5.5 x 3.5 x 1.5 cm. Intergrown rhombs of lustrous and translucent calcite, to 1.0 cm across, have been colored a rich blue by fibrous inclusions of aurichalcite. A nice, sizable plate of high quality.
3.5 x 3.2 x 1.2 cm. Rather equant rhombs of glassy and gemmy calcite, to 1.2 cm across, are aesthetically perched on limonite matrix. Just a hint of fibrous blue aurichalcite is seen in the rhombs.
5.0 x 4.2 x 3.7 cm. A cluster of intergrown, lustrous and translucent, equant calcite rhombs, to 2.0 cm across, are emplaced on a limonite matrix. Fibrous inclusions of aurichalcite have resulted in the crystals exhibiting a rich blue color. Excellent, complex intergrown geometry and large crystal size make this a very impressive piece, with shocking intense color. This is one of the richest overall plates of solid colored crystals from the find. When closely examining the calcite, it is possible to see the fibrous aurichalcite crystals preserved inside, thus showing that this is intergrowth, as much or more so than simple inclusions. Some crystals of calcite may be more aurichalcite than calcite now. The color is, truly, mesmerizing. The color and lustre both are better in person because we had the camera compromise to try to get each in some degree.
6.5 x 4.5 x 2.9 cm. Sharply formed, intergrown crystals of lustrous and translucent, rhombs of calcite, to 2.2 cm across, are richly colored blue by fibrous inclusions of aurichalcite. The color and stark contrast against the ocherous limonite is dramatic. A superb plate in terms of calcite quality and luster.
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Rob Lavinsky, rob@irocks.com
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share specimen![Goethite, Calcite from Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA [db_pics/mdpics/MD-267186a.jpg]](db_pics/mdpics/MD-267186a.jpg)
![Goethite, Calcite from Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA [db_pics/mdpics/MD-267186b.jpg]](db_pics/mdpics/MD-267186b.jpg)
![Calcite (Var: Cobaltoan Calcite) from Solita Mine, Peramea, Baix Pallars, Pallars Sobirà, Lleida (Lérida), Catalonia, Spain [db_pics/mdpics/MD-267192a.jpg]](db_pics/mdpics/MD-267192a.jpg)
![Calcite (Var: Cobaltoan Calcite) from Solita Mine, Peramea, Baix Pallars, Pallars Sobirà, Lleida (Lérida), Catalonia, Spain [db_pics/mdpics/MD-267192b.jpg]](db_pics/mdpics/MD-267192b.jpg)
![Aurichalcite, Calcite from Ojuela Mine, Mapimí, Mun. de Mapimí, Durango, Mexico [db_pics/mdpics/MD-268029a.jpg]](db_pics/mdpics/MD-268029a.jpg)
![Aurichalcite, Calcite from Ojuela Mine, Mapimí, Mun. de Mapimí, Durango, Mexico [db_pics/mdpics/MD-268030a.jpg]](db_pics/mdpics/MD-268030a.jpg)
![Calcite, Aurichalcite from Ojuela Mine, Mapimí, Mun. de Mapimí, Durango, Mexico [db_pics/mdpics/MD-268031a.jpg]](db_pics/mdpics/MD-268031a.jpg)
![Aurichalcite, Calcite from Ojuela Mine, Mapimí, Mun. de Mapimí, Durango, Mexico [db_pics/mdpics/MD-268032a.jpg]](db_pics/mdpics/MD-268032a.jpg)
![Aurichalcite, Calcite from Ojuela Mine, Mapimí, Mun. de Mapimí, Durango, Mexico [db_pics/mdpics/MD-268033a.jpg]](db_pics/mdpics/MD-268033a.jpg)
![Aurichalcite, Calcite from Ojuela Mine, Mapimí, Mun. de Mapimí, Durango, Mexico [db_pics/mdpics/MD-268034a.jpg]](db_pics/mdpics/MD-268034a.jpg)
![Aurichalcite, Calcite from Ojuela Mine, Mapimí, Mun. de Mapimí, Durango, Mexico [db_pics/mdpics/MD-268035a.jpg]](db_pics/mdpics/MD-268035a.jpg)
![Aurichalcite, Calcite from Ojuela Mine, Mapimí, Mun. de Mapimí, Durango, Mexico [db_pics/mdpics/MD-268036a.jpg]](db_pics/mdpics/MD-268036a.jpg)
![Aurichalcite, Calcite from Ojuela Mine, Mapimí, Mun. de Mapimí, Durango, Mexico [db_pics/mdpics/MD-268038a.jpg]](db_pics/mdpics/MD-268038a.jpg)
![Aurichalcite, Calcite from Ojuela Mine, Mapimí, Mun. de Mapimí, Durango, Mexico [db_pics/mdpics/MD-268039a.jpg]](db_pics/mdpics/MD-268039a.jpg)
![Calcite, Aurichalcite from Ojuela Mine, Mapimí, Mun. de Mapimí, Durango, Mexico [db_pics/mdpics/MD-268040a.jpg]](db_pics/mdpics/MD-268040a.jpg)
![Aurichalcite, Calcite from Ojuela Mine, Mapimí, Mun. de Mapimí, Durango, Mexico [db_pics/mdpics/MD-268042a.jpg]](db_pics/mdpics/MD-268042a.jpg)
![Aurichalcite, Calcite from Ojuela Mine, Mapimí, Mun. de Mapimí, Durango, Mexico [db_pics/mdpics/MD-268043a.jpg]](db_pics/mdpics/MD-268043a.jpg)