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Chloanthite Skutterudite Annabergite & Proustite

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MNR616846

Chloanthite Skutterudite Annabergite & Proustite

ex. Rudolf Ďuďa collection
Classic Locality

Description Tabs

Description
Locality: 
Jáchymov, Krušné Hory, Karlovy Vary Region, Czech Republic
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.3 × 3.2 × 2.6 cm
Description

Chloantite (Ni-skutterudite) is rare at Jachymov. Sample present also skutterudite, green annabergite and proustite in the matrix vug.

This sample comes from collection of Mr. Rudolf Ďuďa # 2/155

Mineral Data
What's on the rock

Chloanthite

Variety Of: 

Nickelskutterudite

Formula: 
NiAs3-x
Strunz: 
2.EC.05
Hardness: 
5.5 - 6.0
Formula: 
NiAs2 - excess As up to As2.5
Hardness: 
0.0

Skutterudite

Formula: 
CoAs3-x
Strunz: 
2.EC.05
Hardness: 
5.5 - 6.0
Streak: 
Black
Type Locality: 
Skuterud Mines (Skutterud Mines; Modum Cobalt Mines), Modum, Buskerud, Norway

Annabergite

Formula: 
Ni3(AsO4)2·8H2O
Strunz: 
8.CE.40
Crystal System: 
Monoclinic
Hardness: 
1.5 - 2.5
Type Locality: 
Teichgräber Flacher vein, Teichgräber deep adit, Kippenhain Mine (Kippenhayn Mine), Schreckenberg, Frohnau, Annaberg-Buchholz, Annaberg District, Erzgebirge, Saxony, Germany

Proustite

Formula: 
Ag3AsS3
Strunz: 
2.GA.05
Crystal System: 
Trigonal
Hardness: 
2.0 - 2.5
Labels
Label Images - only: Chloanthite Skutterudite Annabergite & Proustite