Search Archived Mineral Specimens
- Availability
- Sold
- Locality
- Inakuraishi mine, Furubira, Sapporo, Hokkaido, Japan
- Formula
- AgMnPb3Sb5S12
- Size
- Micromount xxcm
- Tagged
- sulfide
A single 0.75mm equant Uchucchacuaite crystal on a bit of Uchucchacuaite matrix. This is not a micromount per se.....but is a loose small 2mm specimen.
- Availability
- Sold
- Locality
- Inakuraishi mine, Furubira, Sapporo, Hokkaido, Japan
- Formula
- AgMnPb3Sb5S12
- Size
- Thumbnail 2.5x1.5x1.5cm
- Tagged
- sulfide , silver
- Special Info
- Microprobed
This is a small 2cm specimen with mostly massive crystal grains of Uchucchacuaite to 2mm in Rhodochrosite matrix. The specimen comes with the polished microprobe disc/mount.
- Availability
- Sold
- Locality
- Open Pit mine, Boron, Kern Co., California, United States
- Formula
- NaCaB5O6(OH)6·5H2O
- Size
- Miniature 4.5x4.5x3cm
Fantastic sprays of snow white fibrous Ulexite to 3mm on Colemanite. Excellent specimen.
- Availability
- Sold
- Featured
- Featured in Special Editions
- Locality
- Boron, Kern Co., California, United States
- Formula
- NaCaB5O6(OH)6·5H2O
- Size
- Cabinet 10x6x6cm
- Tagged
- Ore Minerals
An excellent specimen showing the fibrous nature of Ulexite used in fiber optics. Also called "TV rock" Ulexite as the remarkable property of transferring light through its fibers by the refraction of light even when bent.
- Availability
- Sold
- Locality
- Boron, Kramer dist., Kern Co., California, United States
- Formula
- NaCaB5O6(OH)6·5H2O
- Size
- Miniature 5x3.5x2.5cm
Silky white fine acicular Ulexite in groups to 1.5cm.
