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Watkinsonite & Hansblockite

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JYJ756693

Watkinsonite & Hansblockite

EDS conf. specimen no 19-12-14-ED
Type Locality

Description Tabs

Description
Locality: 
El Dragón Mine, Quijarro Province, Potosi Department, Bolivia
Class: 
Massive/Crystalline
Size Range: 
Micromount (under 1cm)
Size: 
0.8 × 0.5 × 0.2 cm
Description

This EDS analysed polished section (19-12-14-ED) hosts several rare selenides. 

The third image displays a pale beige inclusion of watkinsonite. The first and second image display hansblockite among dark blue klockmannite, penroseite and clausthalite. The fourth image displays native gold among the selenides. 

Analysis attached. 

 

Mineral Data
What's on the rock

Watkinsonite

Formula: 
Cu2PbBi4(Se,S,Te)8
Strunz: 
2.HB.20e
Hardness: 
3.5
Colour: 
Black
Type Locality: 
Otish Mountains U deposit, Otish Mts, Baie-James, Nord-du-Québec, Québec, Canada

Hansblockite

Formula: 
(Cu,Hg)(Bi,Pb)Se2
Crystal System: 
Monoclinic
Hardness: 
2 - 2.5
Colour: 
Black
Type Locality: 
El Dragón mine, Antonio Quijarro Province, Potosí, Bolivia
Dimorph Of: 

Gudmundite

Formula: 
FeSbS
Strunz: 
2.EB.20
Hardness: 
5.5 - 6.0
Analysis
Analysis Report - only: Watkinsonite & Hansblockite
Analysis Report - only: Watkinsonite & Hansblockite
Analysis Report - only: Watkinsonite & Hansblockite
Analysis Report - only: Watkinsonite & Hansblockite
Analysis Report - only: Watkinsonite & Hansblockite