Search Archived Mineral Specimens
- Availability
- Sold
- Locality
- Herja mine, Baia Mare, Maramures Co., Romania
- Formula
- CaCO3
- Size
- SmCabinet 7.5x5.5x4cm
- Tagged
- carbonate
Beautiful specimen of Calcite colored a dark, but lustrous black by fine inclusions of Boulangerite. There is a second generation of Boulangerite ON the Calcite also. Jet black Sphalerite is also associated. Excellent specimen. These are hard to find on the market today.
- Availability
- Sold
- Locality
- Tsumeb mine, Tsumeb, Namibia
- Formula
- CaCO3
- Size
- SmCabinet 7x5x4cm
- Tagged
- carbonate
The large yellowish to colorless rhombs of Calcite capture your eyes immediately on this unique specimen. The matrix is composed of mostly first generation much smaller microscopic Calcite. Of note are numerous lime green micro crystals strung about the matrix. These are possibly Duftite or Mottramite. The largest Calcite rhomb measures 2cm.
- Availability
- Sold
- Locality
- Broken Hill, New South Wales, Australia
- Formula
- CaCO3
- Size
- SmCabinet 4.5x6.5x5cm
- Tagged
- carbonate
Nice piece of petal-pink Manganoan Calcite. Excllent showy display quality specimen from this important mining and mineral locality.
- Availability
- Sold
- Locality
- Shullsburg, Lafayette Co., Wisconsin, United States
- Formula
- CaCO3
- Size
- Cabinet 6x10.5x5cm
- Tagged
- carbonate
An aestethic group of huge nearly 5cm translucent white Calcite crystals that are very well formed and take an interesting nailhead/modified rhombohedral form. Classic and highly sought locality for the Wisconsin collectors! Minor scuffing. Minor fluorescence to a light orange.
- Availability
- Sold
- Locality
- Linwood mine, Scott Co., Iowa, United States
- Formula
- CaCO3
- Size
- Miniature 4x4x3.5cm
- Tagged
- carbonate
This is pretty much a flawless, perfect crystal of Calcite showing first and second order rhombohedral faces. The crystal is virtually transparent and shows subtle striations. It is also perched nicely on a base of limestone with Marcasite and several other smaller perfect Calcite crystals. Excellent miniature.
- Availability
- Sold
- Locality
- Elmwood mine, Smith Co., Tennessee, United States
- Formula
- CaCO3
- Size
- SmCabinet 9x6x7cm
- Tagged
- carbonate
You've seen plenty of these on the market these days. It's a popular American locality which has produced countless beautiful groups of Fluorite, Calcite, Sphalerite and Barite. This specimen is nearly flawless, albeit, a partially cleaved matrix base, although you can expect that with any Elmwood piece. This crystal has the best amber orange color sought after in these pieces, the luster is great and the crystal edges are sharp. The large main crystal is 9cm long, You can see the twin plane in a few photos. With a little help, it displays marvelously.
