Criddleite
A variety of Minerals
What is Criddleite?
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Criddleite 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.
Quick Facts
Physical Properties
- Color
- Gray-blue
- Hardness (Mohs)
- 3 - 3.5
- Rock tumbling
- Not recommended
- Density
- 6.57 g/cm³
- Streak
- Black
Chemical Properties
- Chemical Formula
- TlAg2Au3Sb10S10
- Elements
- Ag, Au, S, Sb, Tl
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Criddleite FAQs
How do I identify Criddleite?
Criddleite can be identified by its hardness of 3 - 3.5 on the Mohs scale, Gray-blue color. Look for these key characteristics when examining specimens.
What color is Criddleite?
Criddleite typically appears in Gray-blue. Color can vary depending on impurities and formation conditions.
How hard is Criddleite?
Criddleite has a hardness of 3 - 3.5 on the Mohs scale. This makes it a soft mineral that can be scratched easily.
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