Collectible Mineral Specimens Under $50
- Availability
- Sold
- Locality
- Broken Hill, New South Wales, Australia
- Formula
- PbSO4
- Size
- 5 x 4 x 2 cm - Miniature
This specimen has very good colorless crystals to over 1cm. But the largest crystal, 3cm, along the backside is slightly damaged with a few dings.
- Availability
- Sold
- Locality
- Touissit-Bou Beker dist., Jerada Prov., Oriental, Morocco
- Formula
- PbSO4
- Size
- 2 x 1 x 0.4 cm - Thumbnail
A single honey yellow, striated crystal.
- Availability
- Sold
- Locality
- La Plaka, Laurium, Greece
- Formula
- Ni3(AsO4)2ยท8H2O
- Size
- 4 x 3.5 x 3.5 cm - Miniature
- Tagged
- arsenate, nickel
Bright green thiin platy crystals to 1mm.
- 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
- $30.00
- Locality
- Cuenca, Castile-La Mancha, Spain
- Formula
- CaCO3
- Size
- 5 x 1.5 x 1.5 cm - Miniature
- Tagged
- carbonate
Purple near the center fading to greyish at the ends Aragonite with good cyclic twinning.
- Availability
- Sold
- Locality
- Mina Ojuela, Mapimi, Durango, Mexico
- Size
- 2 x 2 x 1 cm - Thumbnail
"Bubbly" yellow green Arsenodescloizite.
