Rare Mineral Specimens - search page
- Availability
- Sold
- Locality
- New Cornelia mine, Ajo Dist., Pima Co., Arizona, United States
- Formula
- Na3Cu2+20Al3Si29O76(OH)16·8H2O
- Size
- 6 x 3.5 x 1.5 cm - Sm Cabinet
- Tagged
- copper
- Special Info
- Type Locality
A very rich specimen with greenish blue fibrous crystals of Ajoite to 1mm.
- Availability
- Sold
- Locality
- Mohawk mine, Keweenaw Co., Michigan, United States
- Formula
- Cu1-xAsx; x = 1/7
- Size
- 8 x 5.5 x 6 cm - Sm Cabinet
Rich specimen of this copper arsenide with arborescent growth in Calcite. When fresh it is a steely grey, but as the photos show the Algodonite that is exposed is tanished to a yellowish brown color. The white matrix is Calcite. Algodonite from the Keweenaw is increasingly rare on the market and uncommon worldwide.
- Availability
- Sold
- Locality
- Hilltop mine, Organ dist., Dona Ana Co., New Mexico, United States
- Formula
- PbTe
- Size
- 6 x 2.5 x 3.5 cm - Sm Cabinet
- Tagged
- tellurium
This specimen is nearly all Altaite. You might think the brassy colored veins are Pyrite. But, examination under the scope reveals a sectility like butter. It is tarnished and fresh is a silvery color. The Tellurium is brittle and is scare on this specimen. It's a heavy specimen too.
- Availability
- Sold
- Locality
- Itos mine, near Oruro City, Oruro Dept., Bolivia
- Formula
- AgPbSb3S6
- Size
- 2 x 1.5 x 1.5 cm - Thumbnail
Thick tabular and striated crystals to 1cm.
- Availability
- Sold
- Locality
- White Caps mine, Nye Co., Nevada, United States
- Formula
- As2O3
- Size
- 3.5 x 2.5 x 1.5 cm - Miniature
- Special Info
- Poisonous!!
Less than 1mm octahedra crystals covering face. Arsenolite is toxic when ingested. Wash hands if you touch it.
- Availability
- Available
- Price
- $350.00
- Locality
- Saint-Symphorien, near Autun, Saône-et-Loire, Burgundy, France
- Formula
- Ca(UO2)2(PO4)2·10-12H2O
- Size
- 6 x 4.5 x 3 cm - Sm Cabinet
- Tagged
- phosphate
Bright, vivid yellow plates and rosttes of Autunite from type locality.
