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Acanthite

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JYJ733855

Acanthite

SEM-EDS confirmed sample no 2019-06-23-9

Description Tabs

Description
Locality: 
Colquechaca, Chayanta Province, Potosi Department, Bolivia
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.8 × 3.6 × 3.2 cm
Description

SEM-EDS confirmed acanthite in quartz cavities no 2019-06-23-9 hosting many dark grey crystals and coatings on quartz. Rich sample from a rich and historic silver mining site in Bolivia. 

 

Mineral Data
What's on the rock

Acanthite

Formula: 
Ag2S
Strunz: 
2.BA.35
Crystal System: 
Monoclinic - Prismatic
Hardness: 
2.0 - 2.5
Streak: 
lead grey
Type Locality: 
Jáchymov (St Joachimsthal), Jáchymov District (St Joachimsthal), Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic
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