Francisite
A variety of Minerals
What is Francisite?
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Francisite 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.
Francisite Localities Map
See where Francisite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Bright green
- Hardness (Mohs)
- 3 - 4
- Density
- 5.42 g/cm³
- Streak
- pale apple green
Chemical Properties
- Chemical Formula
- Cu3Bi(SeO3)2O2Cl
- Elements
- Bi, Cl, Cu, O, Se
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Francisite FAQs
How do I identify Francisite?
Francisite can be identified by its hardness of 3 - 4 on the Mohs scale, Bright green color. Look for these key characteristics when examining specimens.
What color is Francisite?
Francisite typically appears in Bright green. Color can vary depending on impurities and formation conditions.
How hard is Francisite?
Francisite 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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