











Collectible Mineral Specimens Under $50
- 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
- Available
- Price
- $25.00
- Locality
- Huelva, Andalusia, Spain
- Formula
- CaCO3
- Size
- 4.5 x 2.5 x 2 cm - Miniature
- Tagged
- carbonate
Cool oolitic Aragonite, variety ktypeite.
- Availability
- Available
- Price
- $25.00
- Locality
- Panasqueira, Covilha, Amazonas, Brazil
- Formula
- FeAsS
- Size
- 4.5 x 2 x 2.5 cm - Miniature
- Tagged
- sulfide
Bladed crystals of Arsenopyrite to 2cm long with a second generation of cockscomb habit Arsenopyrite. There are also numberous micro, cubic crystals of Pyrite. It is quite interesting.
- Availability
- Available
- Price
- $35.00
- Locality
- Freiberg dist., Erzgebirge, Saxony, Germany
- Formula
- FeAsS
- Size
- 6 x 1.5 x 1.5 cm - Sm Cabinet
- Tagged
- sulfide
Two crystals, one to about 1cm, in old vial. Ex. A. E. Seaman.
- Availability
- Available
- Price
- $50.00
- Locality
- Freiberg dist., Erzgebirge, Saxony, Germany
- Formula
- FeAsS
- Size
- 3 x 3 x 1.5 cm - Thumbnail
- Tagged
- sulfide
- Special Info
- Antique Specimen
Cluster of Arsenopyrite crystals to 6mm with Quartz. Old specimen deaccessioned by the A.E. Seamun Museum.