Hulsite
A variety of Minerals
What is Hulsite?
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Hulsite 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.
Hulsite Localities Map
See where Hulsite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Black
- Hardness (Mohs)
- 3
- Density
- 4.28 g/cm³
Chemical Properties
- Chemical Formula
- (Fe2+,Mg)2(Fe3+,Sn)(BO3)O2
- Elements
- B, Fe, Mg, O, Sn
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Hulsite FAQs
How do I identify Hulsite?
Hulsite can be identified by its hardness of 3 on the Mohs scale, Black color. Look for these key characteristics when examining specimens.
What color is Hulsite?
Hulsite typically appears in Black. Color can vary depending on impurities and formation conditions.
How hard is Hulsite?
Hulsite has a hardness of 3 on the Mohs scale. This makes it a soft mineral that can be scratched easily.
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