Coquandite
A variety of Minerals
What is Coquandite?
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Coquandite 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.
Coquandite Localities Map
See where Coquandite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- colorless
- Hardness (Mohs)
- 3 - 4
- Density
- 5.78 g/cm³
- Streak
- white
Chemical Properties
- Chemical Formula
- Sb6+xO8+x(SO4)(OH)x(H2O)1- x (x = 0.3) Originally assumed to be (SbO)6(SO4)O2.H2O.
- Elements
- H, O, S, Sb
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Coquandite FAQs
How do I identify Coquandite?
Coquandite can be identified by its hardness of 3 - 4 on the Mohs scale, colorless color. Look for these key characteristics when examining specimens.
What color is Coquandite?
Coquandite typically appears in colorless. Color can vary depending on impurities and formation conditions.
How hard is Coquandite?
Coquandite has a hardness of 3 - 4 on the Mohs scale. This makes it a soft mineral that can be scratched easily.
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