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Stannite & Cassiterite

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ESM573759

Stannite & Cassiterite

Description Tabs

Description
Locality: 
San José Mine, Oruro City, Cercado Province, Oruro Department, Bolivia
Class: 
Combination
Size Range: 
Cabinet (10-18 cm)
Size: 
2.8 × 12 × 7.7 cm
Description

Sharp metallic stannite crystals with black cassiterite crystals and minor pyrite cubes

Mineral Data
What's on the rock

Stannite

Formula: 
Cu2(Fe,Zn)SnS4
Strunz: 
2.CB.15a
Crystal System: 
Tetragonal
Hardness: 
4.0
Streak: 
Black
Type Locality: 
West Wheal Kitty (Wheal Rock), West Wheal Kitty group, St Agnes, St Agnes District, Cornwall, England, UK

Cassiterite

Formula: 
SnO2
Strunz: 
4.DB.05
Crystal System: 
Tetragonal
Hardness: 
6.0 - 7.0