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Annabergite & Cabrerite

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AST204706

Description Tabs

Description
Locality: 
Km-3 Mine, Lavrion District, Attiki Prefecture, Greece
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.5 × 4 × 3 cm
Description

Matrix cavity richly covered by inense dark green annabergite crystals with minor neon green cabrerite in microcrystal aggregates. Smaller annabergite cavity at the back of the specimen.

Mineral Data
What's on the rock

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

Cabrerite

Synonym Of: 

Magnesian Annabergite

Formula: 
(Ni,Mg)3(AsO4)2·8H2O
Hardness: 
0.0