Sanbornite
A variety of Minerals
What is Sanbornite?
Sanbornite is a rare barium phyllosilicate mineral with formula BaSi2O5. Sanbornite is a colorless to white to pale green, platey orthorhombic mineral with Mohs hardness of 5 and a specific gravity of 3.74. It was first described from Incline, Mariposa County, California in 1932 and named for mineralogist Frank B. Sanborn (1862–1936).
Sanbornite Market Value Calculator
Estimate the market value of Sanbornite using size, quality, and finish. This preview calculator is for quick context and is not a formal appraisal.
Sanbornite Localities Map
See where Sanbornite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Map preview
North ZoneCentral RidgeSouth Basin
Quick Facts
Physical Properties
- Color
- Colourless to white
- Hardness (Mohs)
- 5
Chemical Properties
- Chemical Formula
- Ba2(Si4O10)
- Elements
- Ba, O, Si
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