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Coiraite

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SKY601137

Coiraite

Description Tabs

Description
Locality: 
Pirquitas, Rinconada Department, Jujuy, Argentina
Class: 
Crystal Group/Cluster
Size Range: 
Micromount (under 1cm)
Size: 
0.5 × 0.5 × 0.5 cm
Description

Black shiny crystal aggregates of coiraite, a very rare mineral (a Pb-Sn-Fe-As sulphide) described a few years ago (IMA 2005-024). Coiraite is almost always found massive, so this sample is exceptional because it has crystals. In addition, it is only found in one locality worldwide.

Mineral Data
What's on the rock

Coiraite

Formula: 
(Pb,Sn)12.5Sn5FeAs3S28
Strunz: 
2.HF.25b
Hardness: 
0.0
Colour: 
dark grey
Type Locality: 
Pirquitas Ag-Sn Deposit, Rinconada Department, Jujuy, Argentina

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