Collectible Mineral Specimens Under $50
- Availability
- Sold
- Locality
- Cliff Dwellers Lodge, Vermillion Cliffs dist., Coconino Co., Arizona, United States
- Formula
- Zn2Fe3+4(SO4)4(C2O4)2(OH)4 · 17H2O
- Size
- 3.5 x 2 x 2 cm - Miniature
- Special Info
- Type Locality
Yellow acicular crystals in a bunch to 0.8mm.
- Availability
- Available
- Price
- $35.00
- Locality
- Coal Hill Lead vein, Rossie, St. Lawrence Co., New York, United States
- Formula
- TiO2
- Size
- 3 x 2.5 x 2 cm - Thumbnail
Translucent blue crystals less than 1mm with a unique square termination.
- Availability
- Available
- Price
- $30.00
- Locality
- Stanley Butte, Graham Co., Arizona, United States
- Formula
- Ca3Fe3+2(SiO4)3
- Size
- 4.5 x 4 x 2.3 cm - Miniature
Greenish orange cluster of Andradite crystals measuring about 5-7mm.
- Availability
- Available
- Price
- $25.00
- Locality
- Northwest of Sasabe, Arizona, United States
- Formula
- PbSO4
- Size
- 8 x 5 x 3.5 cm - Sm Cabinet
Grey alterations rim around parent Galena with blue Chrysocolla.
- Availability
- Available
- Price
- $35.00
- Featured
- Featured in Special Editions
- Locality
- Redruth, Cornwall, England
- Formula
- KFe2+3(Si3Al)O10(OH)2
- Size
- 7 x 5.5 x 3 cm - Sm Cabinet
Bronzy black Annite flakes throughout mass.
Biotite has historically been treated as an individual mineral species by geologist. Rieder et. al in the Canadian Mineralogist v. 36 (1998), reclassified and placed Biotite within the Annite-Phlogopite series.
Biotite is a phyllosilicate of the Mica group and is classified as an ordinary (True or Common) mica meaning it has flexible cleavage plates. For more information on Mica minerals and other phyllosilicates please reference our article - Click Here.
- Availability
- Sold
- Locality
- Bristol Dry Lake, Saltus, San Bernardino Co., California, United States
- Formula
- CaCl2·6H2O
- Size
- 7 x 3.5 x 3.5 cm - Sm Cabinet
Colorless Antarcticite in a vial. It is extremely hygroscopic as is uptakes water.
