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- Availability
- Sold
- Locality
- America mine, Santa Eulalia, Chihuahua, Mexico
- Formula
- CaCO3
- Size
- Cabinet 16x13.5x6cm
- Tagged
- carbonate
"Mariposa" habit Calcite crystals to 3cm. The Mariposa habit is formed by two generations of Calcite. The first is easily seen since it is coated with a thin veneer of brown iron oxide. The first generation are scalenohedral crystals, and the second is an overgrowth which totally wraps around the first giving an appearance that of a snow-capped mounain range. The very tips of the crystals are sharp as a pin. The Mineralogical Record issue of "Santa Eulalia" describes these clusters. The specimen is in excellent condition and any serious collector of fine Mexican minerals should have one of these in their collection.
- Availability
- Sold
- Featured
- Featured in Special Editions
- Locality
- Santa Eulalia, Chihuahua, Mexico
- Formula
- CaCO3
- Size
- Cabinet 13x10x7cm
This is an interesting specimen of a Calcite cluster once called the "Mariposa" habit. These are scalenohedral crystals to 3cm some coated with a thin veneer of chocolate iron oxide. There is a second generation of colorless, complex Calcite on top of the aforementioned Calcite. A third generation can be seen as smalle 1-3mm Calcite crystals occupying the terminations of some of the crystals. Acquired by Hampson in 1971. These Calcites are rarely offered on the market these days. It is a classic for Mexico.
- Availability
- Sold
- Featured
- Featured in Special Editions
- Locality
- Mina Ojuela, Mapimi, Durango, Mexico
- Formula
- CaCO3
- Size
- Cabinet 14x8x9cm
- Tagged
- carbonate
Amazing chocolate brown scalenohedral crystals to 3cm in a geode-like setting.
- Availability
- Sold
- Locality
- Sallisaw, Sequoyah Co., Oklahoma, United States
- Formula
- CaCO3
- Size
- Miniature 4x4.5x2.5cm
- Tagged
- carbonate
Super, waterclear Calcite rhombs. The largest crystal is 6mm on edge.
- Availability
- Sold
- Locality
- Mariposa mine, Terlingua dist., Brewster Co., Texas, United States
- Formula
- CaCO3
- Size
- Miniature 5x4x3.5cm
- Tagged
- carbonate
A good dogtooth habit Calcite from this important mercury locality. A hint of things to come.
- Availability
- Sold
- Locality
- Mariposa mine, Terlingua dist., Brewster Co., Texas, United States
- Formula
- CaCO3
- Size
- SmCabinet 5.5x4.5x2cm
- Tagged
- carbonate
Orange scalenohedral crystals of sharply terminated Calcite.
