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Franckeite

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CAM133273

Franckeite

Description Tabs

Description
Locality: 
San José Mine, Oruro City, Cercado Province, Oruro Department, Bolivia
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 4.3 × 2 cm
Description

A very good and well-crystalized example of the uncommon tin-sulfosalt franckeite with a rich coverage of dark grey crystals on matrix.

Mineral Data
What's on the rock

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
Cartils Minerals

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