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Hansblockite & Eskebornite

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JYJ727715

Hansblockite & Eskebornite

Description Tabs

Description
Locality: 
El Dragón Mine, Quijarro Province, Potosi Department, Bolivia
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.2 × 1.9 × 1.4 cm
Description

Polished section (SEM-EDS confirmed sample no 2019-06-06-04) hosting beige yellow hansblockite and brassy brown eskebornite among penroseite and native gold. Analysis attached. The arrow indicates the point of interest. Correlative backscatter and reflective light images of this sample attached

The numbers in the light image indicates the position of the following minerals:

4-4 to 4-7: hansblockite, analysis attached

4-2: eskebornite, analysis attached

4-1: penroseite

Mineral Data
What's on the rock

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

Eskebornite

Formula: 
CuFeSe2
Strunz: 
2.CB.10a
Hardness: 
3.0 - 3.5
Streak: 
Black
Type Locality: 
Eskaborn Adit, Tilkerode (Abberode), Harz, Saxony-Anhalt, Germany
Analysis
Analysis Report - only: Hansblockite & Eskebornite
Analysis Report - only: Hansblockite & Eskebornite
Analysis Report - only: Hansblockite & Eskebornite
Analysis Report - only: Hansblockite & Eskebornite