Prosopite
A variety of Minerals
What is Prosopite?
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Prosopite 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.
Prosopite Localities Map
See where Prosopite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Greyish, white, colourless in transmitted light
- Hardness (Mohs)
- 4.5
- Density
- 2.898 g/cm³
- Streak
- White
Chemical Properties
- Chemical Formula
- CaAl2F4[(OH)4-xFx], x = 0.0–1.0
- Elements
- Al, Ca, F, H, O

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Prosopite FAQs
How do I identify Prosopite?
Prosopite can be identified by its hardness of 4.5 on the Mohs scale, Greyish color. Look for these key characteristics when examining specimens.
What color is Prosopite?
Prosopite typically appears in Greyish, white, colourless in transmitted light. Color can vary depending on impurities and formation conditions.
How hard is Prosopite?
Prosopite has a hardness of 4.5 on the Mohs scale. This gives it moderate hardness.


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