Rare Mineral Specimens - search page
- Availability
- Available
- Price
- $75.00
- Locality
- Esquire #7 claim, Big Creek, Fresno Co., California, United States
- Formula
- Ba4Fe43+O3(OH)3(Si4O12)[Si2O3(OH)4]Cl
- Size
- 2 x 1.5 x 1 cm - Thumbnail
Dark blue massive Cerchiaraite-(Fe). The Esquire #7 deposit share type localities with two other localities.
SOLD
- Availability
- Sold
- Locality
- Van Gordon Creek prospect, Tulare Co., California, United States
- Formula
- Ba4Mn4O3(OH)3(Si4O12)[Si2O3(OH)4]Cl
- Size
- 2.7 x 2.4 x 1.5 cm - Thumbnail
Brownish green compact fibrous Cerchiaraite-(Mn).
SOLD
- Availability
- Sold
- Locality
- Bambollita mine, Moctezuma, Sonora, Mexico
- Formula
- Cu5(Te4+O3)2(OH)6·2H2O
- Size
- 4 x 3 x 3 cm - Miniature
- Tagged
- copper, tellurium
- Special Info
- Type Locality
Green radial pod-like crystal groups to 1mm across. Rich, excellent specimen and very rare only found at three localities worldwide.
- Availability
- Available
- Price
- $25.00
- Locality
- San Francisco mine, Sierra Gorda dist., Antofagasta, Chile
- Formula
- Zn3Cu2(SO4)2(OH)6·4H2O
- Size
- 1.3 x 0.7 x 0.6 cm - Thumbnail
- Tagged
- copper
Blue platy crystals.
SOLD
- Availability
- Sold
- Locality
- Tip Top mine, Custer Co., South Dakota, United States
- Formula
- Ca2Mg(PO4)2·2H2O
- Size
- 4 x 3.6 x 3 cm - Miniature
- Tagged
- phosphate, pegmatite mineral
White to colorless fish-shaped crystals with pointed terminations as random singles and smaller radiating groups. The single crystals measure less than 0.75mm. I'm a little curious about the radiating groups. I have not noticed these groups before from the Tip Top mine. The matrix is Heterosite.
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.
