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Stannite & Franckeite

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JYJ651032

Stannite & Franckeite

P-XRD analysed!

Description Tabs

Description
Locality: 
San José Mine, Oruro City, Cercado Province, Oruro Department, Bolivia
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
9 × 7 × 4 cm
Description

P-XRD confirmed spherical stannite with minor franckeite and pyrite on sulfidic matrix. 

 

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

Franckeite

Formula: 
Fe2+(Pb,Sn2+)6Sn4+2Sb2S14
Strunz: 
2.HF.25b
Hardness: 
2.5 - 3.0
Type Locality: 
Chocaya mine, Chocaya-Animas (Animas-Chocaya), Atocha-Quechisla District, Sud Chichas Province, Potosí Department, Bolivia