Stannoidite
A variety of Minerals
What is Stannoidite?
Stannoidite is a sulfide mineral composed of five chemical elements: copper, iron, zinc, tin and sulfur. Its name originates from Latin stannum (tin) and Greek eides (or Latin oïda meaning "like"). The mineral is found in hydrothermal Cu-Sn deposits. Stannoidite was first described in 1969 for an occurrence in the Konjo mine, Okayama prefecture, Honshu Island, Japan.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Stannoidite 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.
Stannoidite Localities Map
See where Stannoidite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
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Quick Facts
Physical Properties
- Color
- Brass brown
- Hardness (Mohs)
- 4
- Streak
- Dark brown-gray
Chemical Properties
- Chemical Formula
- Cu+6Cu2+2(Fe2+,Zn)3Sn2S12
- Elements
- Cu, Fe, S, Sn, Zn
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Stannoidite FAQs
How do I identify Stannoidite?
Stannoidite can be identified by its hardness of 4 on the Mohs scale, Brass brown color. Look for these key characteristics when examining specimens.
What color is Stannoidite?
Stannoidite typically appears in Brass brown. Color can vary depending on impurities and formation conditions.
How hard is Stannoidite?
Stannoidite has a hardness of 4 on the Mohs scale. This gives it moderate hardness.
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