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Adamite Heterogenite & Willemite

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GND33013

Adamite Heterogenite & Willemite

Description Tabs

Description
Locality: 
Puttapa, Leigh Creek, Flinders Ranges, South Australia, Australia
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.4 × 3.6 × 2.9 cm
Description

Clear crystals od Adamite have formed in a 2 cm long vugh on a layer of black velvety herogenite with swirls of massive white willemite. Not only mineralogically interesting but absolutely beautiful under a microscope. A great locality piece.

Mineral Data
What's on the rock

Adamite

Formula: 
Zn2(AsO4)(OH)
Strunz: 
8.BB.30
Crystal System: 
Orthorhombic
Hardness: 
3.5
Streak: 
white
Type Locality: 
Chañarcillo, Copiapó Province, Atacama Region, Chile

Heterogenite

Formula: 
CoO(OH)
Strunz: 
4.FE.20
Crystal System: 
Trigonal
Hardness: 
3.0 - 5.0
Type Locality: 
Wolfgang Maaßen Mine field, Schneeberg District, Erzgebirge, Saxony, Germany

Willemite

Formula: 
Zn2SiO4
Strunz: 
9.AA.05
Hardness: 
5.5
Streak: 
White
Type Locality: 
Vieille Montagne (Altenberg; Kelmisberg), Moresnet, Kelmis, Plombières-Vieille Montagne District (Plombières-Altenberg), Verviers, Liège Province, Belgium
Gondwana Minerals