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Hocartite Pirquitasite & Toyohaite

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JYJ811518

Hocartite Pirquitasite & Toyohaite

Description Tabs

Description
Locality: 
Pirquitas, Rinconada Department, Jujuy, Argentina
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.1 × 0.8 × 0.5 cm
Description

Grey metallic hocartite crystals associated with grey metallic pirquitasite the Zn analogon in massive domains. Dull metallic dark greyish-black domains of toyohaite areas close to marcasite domains. All phases have been confirmed on this specimen by EDS. Analysis attached (some are only completely visible in the analysis section tab). 

Mineral Data
What's on the rock

Hocartite

Formula: 
Ag2(Fe2+,Zn)SnS4
Strunz: 
2.CB.15a
Crystal System: 
Tetragonal
Hardness: 
4.0
Type Locality: 
Chocaya mine, Chocaya-Animas (Animas-Chocaya), Atocha-Quechisla District, Sud Chichas Province, Potosí Department, Bolivia

Pirquitasite

Formula: 
Ag2ZnSnS4
Strunz: 
2.CB.15a
Hardness: 
4.0
Colour: 
Black
Type Locality: 
Pirquitas Ag-Sn Deposit, Rinconada Department, Jujuy, Argentina

Toyohaite

Formula: 
Ag2FeSn3S8
Strunz: 
2.DA.10
Crystal System: 
Tetragonal
Hardness: 
4.0
Type Locality: 
Toyoha mine, Minami-ku, Sapporo, Hokkaido, Japan
Analysis
Analysis Report - only: Hocartite Pirquitasite & Toyohaite
Analysis Report - only: Hocartite Pirquitasite & Toyohaite
Analysis Report - only: Hocartite Pirquitasite & Toyohaite
Analysis Report - only: Hocartite Pirquitasite & Toyohaite