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Potosíite

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PDM951421

Potosíite

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Description
Locality: 
San José Mine, Oruro City, Cercado Province, Oruro Department, Bolivia
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
2.2 × 2 × 1.6 cm
Description

Dark grey lustrous crystals of franckeite of the variety potosíite on matrix.

Acquired in 1998. Ex Dr Bob Janssens, #1794b.

Combine specimens to reduce shipping costs!.

Mineral Data
What's on the rock

Potosíite

Variety Of: 

Franckeite

Formula: 
Fe2+(Pb,Sn2+)6Sn4+2Sb2S14
Strunz: 
2.HF.25b
Hardness: 
2.5 - 3.0
Formula: 
Pb6Sn3FeSb3S16
Strunz: 
2.HF.25b
Hardness: 
2.5

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