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- Availability
- Sold
- Featured
- Featured in Special Editions
- Locality
- Les Baux-de-Provence, Alpes-Côte d'Azur, France
- Size
- 6 x 4.5 x 2 cm - Sm Cabinet
- Tagged
- ore mineral
Bauxite is the primary ore of aluminum. It is a mixture of two to three minerals including Diaspore, Bibbsite, and or Boehmite. Bauxite is a secondary product resulting from the weathering, leaching, and alteration of aluminous rocks and minerals. Aluminum is the 3rd most abundant element in the Earth's crust.
This specimen consist of Diaspor and Boehmite, which has a pisolitic habit (rounded concreations).
- Availability
- Sold
- Featured
- Featured in Special Editions
- Locality
- Cleveland mine, Stevens Co., Washington, United States
- Formula
- Pb5Sb4S11
- Size
- 7.5 x 3.5 x 3 cm - Sm Cabinet
- Tagged
- ore mineral
Very thin slender crystals of Boulangerite in a compact fibrous mass.
- Availability
- Sold
- Locality
- Jamestown dist., Boulder Co., Colorado, United States
- Formula
- AuTe2
- Size
- 2.5 x 2.5 x 1.7 cm - Thumbnail
- Tagged
- ore mineral, tellurium, gold
1-2mm highly reflective Calaverite crystals in native Tellurium matrix. Sawed on one side so assume it is tested by EDS.
- Availability
- Available
- Price
- $30.00
- Featured
- Featured in Special Editions
- Locality
- Little Dora mine, San Juan Co., Colorado, United States
- Formula
- Cu1+Fe3+S2
- Size
- 5 x 5 x 3.5 cm - Miniature
- Tagged
- ore mineral, sulfide, copper
Gold colored and iridescent Chalcopyrite with a little Galena and Quartz.
- Availability
- Sold
- Featured
- Featured in Special Editions
- Locality
- Magma mine, Pinal Co., Arizona, United States
- Formula
- Cu1+Fe3+S2
- Size
- 7.5 x 6 x 2.5 cm - Sm Cabinet
- Tagged
- ore mineral, sulfide, copper
Bronze colored fine mass of Chalcopyrite displaying iridescence.
- Availability
- Sold
- Locality
- Ray mine, Pinal Co., Arizona, United States
- Formula
- Cu
- Size
- 30 x 15 x 5.5 cm - Cabinet
- Tagged
- ore mineral, native element
I improvised to take these photos since the specimen was so large. It is, basically, a large plate of leaf Copper attached to the monzonite porphyry in which it formed. Excellent for the wall or coffee table. It is in inches: 12 x 5.5 x 2.5 inches.