Vonsenite
A variety of Minerals
What is Vonsenite?
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Vonsenite 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.
Vonsenite Localities Map
See where Vonsenite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Black, greenish black
- Hardness (Mohs)
- 5
- Density
- 4.7 g/cm³
- Streak
- Black, blackish green
Chemical Properties
- Chemical Formula
- Fe2+2Fe3+(BO3)O2
- Elements
- B, Fe, O
Also Known As

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Vonsenite FAQs
How do I identify Vonsenite?
Vonsenite can be identified by its hardness of 5 on the Mohs scale, Black color. Look for these key characteristics when examining specimens.
What color is Vonsenite?
Vonsenite typically appears in Black, greenish black. Color can vary depending on impurities and formation conditions.
How hard is Vonsenite?
Vonsenite has a hardness of 5 on the Mohs scale. This gives it moderate hardness.


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