Bosiite
A variety of Minerals
What is Bosiite?
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Bosiite before comparing listings or appraisals.
Size & Weight
Larger, intact specimens usually command higher prices.
Rarity & Demand
Scarce material or popular varieties sell at a premium.
Condition & Finish
Chips, repairs, and heavy wear lower value; clean prep helps.
Treatment & Provenance
Untreated specimens with documented locality are prized.
Bosiite Localities Map
See where Bosiite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Dark brown to black
- Hardness (Mohs)
- 7
- Density
- 3.26 g/cm³
- Streak
- Pale brown
Chemical Properties
- Chemical Formula
- NaFe3+3(Al4Mg2)(Si6O18)(BO3)3(OH)3O
- Elements
- Al, B, Fe, H, Mg, Na, O, Si

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Bosiite FAQs
How do I identify Bosiite?
Bosiite can be identified by its hardness of 7 on the Mohs scale, Dark brown to black color. Look for these key characteristics when examining specimens.
What color is Bosiite?
Bosiite typically appears in Dark brown to black. Color can vary depending on impurities and formation conditions.
How hard is Bosiite?
Bosiite has a hardness of 7 on the Mohs scale. This makes it a relatively hard mineral suitable for jewelry.


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