Rare Mineral Specimens - search page
SOLD
- Availability
- Sold
- Locality
- Sidi Amor ben Salem mine, Tajerouine, Al Kef, Tunisia
- Formula
- PbMn4+3O6(OH)2
- Size
- 4.5 x 2 x 2 cm - Miniature
Dull black, sub-metallic, rounded groups in shell-like layers to 5mm.
SOLD
- Availability
- Sold
- Locality
- Lerbach, Harz, Lower Saxony, Germany
- Formula
- PbSe
- Size
- 3.5 x 2.2 x 0.6 cm - Miniature
- Tagged
- sulfide
A sawed flat surface showing intense silvery mineralization of Clausthalite.
SOLD
- Availability
- Sold
- Locality
- Wood's Chrome mine, Texas, Lancaster Co., Pennsylvania, United States
- Formula
- Mg6Si4O10(OH)8
- Size
- 8 x 7.5 x 3.5 cm - Sm Cabinet
Soapy feeling serpentine with alterations to chromian Clinochlore, the purple foliated masses.
SOLD
- Availability
- Sold
- Locality
- Jomac mine, San Juan Co., Utah, United States
- Formula
- Fe3+2Al2(UO2)2(PO4)4(SO4)(OH)2·20H2O
- Size
- 6 x 4 x 4 cm - Sm Cabinet
Powdery light yellow clustered groups of Cocninoite.
SOLD
- Availability
- Sold
- Locality
- Francois Lake, British Columbia, Canada
- Formula
- Ca2Mg(PO4)2·2H2O
- Size
- 6 x 3.5 x 2.5 cm - Sm Cabinet
- Tagged
- phosphate
- Special Info
- Type Locality
Tan, prismatic crystals in a 5mm "seam".
SOLD
- Availability
- Sold
- Locality
- Etta mine, Pennington Co., South Dakota, United States
- Formula
- Fe2+Nb2O6
- Size
- 5.5 x 5.5 x 1.2 cm - Sm Cabinet
- Tagged
- pegmatite mineral
Thick tabular, heavily striated crystal of black Columbite. Faces on front and back, but not the sides.
