Fluor-dravite
A variety of Tourmaline Group
What is Fluor-dravite?
Fluor-dravite Market Value Calculator
Estimate the market value of Fluor-dravite using size, quality, and finish. This preview calculator is for quick context and is not a formal appraisal.
Fluor-dravite Localities Map
See where Fluor-dravite 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
- Blackish brown
- Hardness (Mohs)
- 7
- Density
- 3.12 g/cm³
- Streak
- Pale brown
Chemical Properties
- Chemical Formula
- Na(Mg3)Al6(Si6O18)(BO3)3(OH)3F
- Elements
- Al, B, F, H, Mg, Na, O, Si
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