Teallite
A variety of Minerals
What is Teallite?
Teallite is a sulfide mineral of tin and lead with chemical formula: PbSnS2. It occurs in hydrothermal veins and is sometimes mined as an ore of tin. Teallite forms soft silvery grey mica-like plates and crystallizes in the orthorhombic system. The Mohs hardness is 1.5 to 2 and the specific gravity is 6.4. Teallite was first described in 1904 from its type locality in Santa Rosa, Antequera, Bolivia. It was named for the British geologist Jethro Justinian Harris Teall (1849–1924).
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Teallite 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.
Teallite Localities Map
See where Teallite 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
- silvery grey, lead-gray to iron-gray; tarnishes dull or iridescent
- Hardness (Mohs)
- 1.5 - 2
- Density
- 6.57 g/cm³
- Streak
- Black
Chemical Properties
- Chemical Formula
- PbSnS2
- Elements
- Pb, S, Sn
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Teallite FAQs
How do I identify Teallite?
Teallite can be identified by its hardness of 1.5 - 2 on the Mohs scale, silvery grey color. Look for these key characteristics when examining specimens.
What color is Teallite?
Teallite typically appears in silvery grey, lead-gray to iron-gray; tarnishes dull or iridescent. Color can vary depending on impurities and formation conditions.
How hard is Teallite?
Teallite has a hardness of 1.5 - 2 on the Mohs scale. This makes it a soft mineral that can be scratched easily.
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