Willyamite
A variety of Minerals
What is Willyamite?
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Willyamite 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.
Willyamite Localities Map
See where Willyamite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Tin-white, steel-gray
- Hardness (Mohs)
- 5 - 5.5
- Density
- 6.76 g/cm³
Chemical Properties
- Chemical Formula
- CoSbS May contain variable amounts of Ni substituting for Co.
- Elements
- Co, S, Sb
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Willyamite FAQs
How do I identify Willyamite?
Willyamite can be identified by its hardness of 5 - 5.5 on the Mohs scale, Tin-white color. Look for these key characteristics when examining specimens.
What color is Willyamite?
Willyamite typically appears in Tin-white, steel-gray. Color can vary depending on impurities and formation conditions.
How hard is Willyamite?
Willyamite has a hardness of 5 - 5.5 on the Mohs scale. This gives it moderate hardness.
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