Mineral Specimen and Product Inventory Search
- Availability
- Available
- Price
- $95.00
- Locality
- Falotta, Tinzen, Sursass, Graubünden, Switzerland
- Formula
- CaMg2(AsO4)2·2H2O
- Size
- 1.3 x 0.9 x 0.8 cm - Thumbnail
- Special Info
- Type Locality
Salmon pink platy crystals in 1mm and less groups. Cabalzarite is a rare arsenate found in only three worldwide localities. On this specimen the crystals are on two sides.
- Availability
- Sold
- Locality
- Union Carbide mine, Wilson Springs, Garland Co., Arkansas, United States
- Formula
- (Fe3+)24AlO6(PO4)17(OH)12·75H2O
- Size
- 7 x 4 x 2 cm - Sm Cabinet
- Tagged
- phosphate
This specimen is covered with yellow to golden brown spheroidal crystal groups to 1mm of radiating Cacoxenite crystals. A superb specimen from this important mineral locality.
- Availability
- Available
- Price
- $250.00
- Locality
- Santa Eulalia, Chihuahua, Mexico
- Formula
- CaCO3
- Size
- 13 x 10 x 4 cm - Cabinet
- Tagged
- carbonate
Colorless to slightly yellow, lustrous Calcite crystals to 2.5cm. Nice display specimen.
- Availability
- Available
- Price
- $75.00
- Reduced Price
- $35.00
- Locality
- Lieping mine, Cheng Zhu City, Hunan, China
- Formula
- CaCO3
- Size
- 12 x 4.5 x 4 cm - Cabinet
- Tagged
- carbonate
A large crystal of Calcite with a smaller crystal to 3.5cm. Both crystals are nice, lustrous and colored a little red-brown by iron oxides.
- Availability
- Available
- Price
- $975.00
- Locality
- America mine, Santa Eulalia, Chihuahua, Mexico
- Formula
- CaCO3
- Size
- 17.5 x 16 x 6 cm - Cabinet
- Tagged
- carbonate
- Special Info
- Fluorescent
This is a large cabinet specimen purchased by Arnold Hampson in 1972 in Santa Eulalia. There are two very distinct generations of Calcite, which are called "Mariposa" (butterfly) habit. The first generation are scalenohedral crystals measuring 3 to 4cm and are covered by glitterly iron-oxides and/or Siderite. The second generation overgrows the first and are simple yellow rhombic Calcite. The first generation is highly fluorescent red, but is hard to through the oxide coatings. However, flipping the specimen over you will see the intense red patterns of growth under shortwave UV.
It is a beautiful specimen in which the photos do not give justice. The special edition on Santa Eulalia in the Mineralogical Record describes these Calcite crystals and the Mariposa habit including a few photos. On the outer edge are two broken off crystals, which do not detract from the overall appearance. In order to extract these from the wall, it was inevitable.
- Availability
- Available
- Price
- $850.00
- Locality
- America mine, Santa Eulalia, Chihuahua, Mexico
- Formula
- CaCO3
- Size
- 16 x 13.5 x 6 cm - Cabinet
- 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.
