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Silver & Acanthite

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SKY810414

Silver & Acanthite

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Description
Locality: 
Norway
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.5 × 0.8 × 0.6 cm
Description

Outstanding crystal group of sharp native silver crystals associated to minoritary black acanthite from an unknown locality.

Very nice under the microscope 

Ex Vandenbroucke Museum collection specimen, from Waregem, Belgium.

 

Mineral Data
What's on the rock

Silver

Formula: 
Ag
Strunz: 
1.AA.05
Crystal System: 
Isometric
Hardness: 
2.5 - 3.0

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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