Mineral Specimen and Product Inventory Search
- Availability
- Sold
- Featured
- Featured in Special Editions
- Locality
- Boron, Kern Co., California, United States
- Formula
- NaCaB5O6(OH)6·5H2O
- Size
- 10 x 6 x 6 cm - Cabinet
- 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
- Available
- Price
- $75.00
- Locality
- West Baker mine, Boron, Kern Co., California, United States
- Formula
- NaCaB5O6(OH)6·5H2O
- Size
- 14 x 10 x 4 cm - Cabinet
Large cone-like radial Ulexite.
- Availability
- Available
- Price
- $175.00
- Locality
- Jacksonville dist., Mother Lode Belt, Tuolumne Co., California, United States
- Formula
- Ca3Cr2(SiO4)3
- Size
- 6 x 4 x 2.5 cm - Sm Cabinet
Good coverage of deep emerald green Uvarovite crystals to 1mm with purple chromium Clinichlore.
- Availability
- Available
- Price
- $65.00
- Locality
- Jacksonville dist., Mother Lode Belt, Tuolumne Co., California
- Formula
- Ca3Cr2(SiO4)3
- Size
- 6.5 x 5 x 2.5 cm - Sm Cabinet
Deep emerald green Uvarovite, mostly contact points, but also a little bit of nearly full crystals, less than 1mm. The pink is Magnesiochromite.
- Availability
- Available
- Price
- $260.00
- Reduced Price
- $150.00
- Locality
- Jacksonville dist., Mother Lode Belt, Tuolumne Co., California
- Formula
- Ca3Cr2(SiO4)3
- Size
- 7 x 5 x 4 cm - Sm Cabinet
Of the three specimens of Uvarovite posted here, this one has the most single crystals which are well-defined. The crystals range from 0.5mm to 1mm and have grown in larger than usual open spaces. The matrix is Magnesiochromite with minor kemmererite.
- Availability
- Available
- Price
- $45.00
- Locality
- Jacksonville dist., Mother Lode Belt, Tuolumne Co., California
- Formula
- Ca3Cr2(SiO4)3
- Size
- 2.3 x 2.1 x 1.5 cm - Thumbnail
Tiny deep emerald green crystals of Uvarovite to less than 0.5mm with purple Magnesiochromite. Large examples of these will be on this weeks update.
