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Otavite & Willemite

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SER821587

Otavite & Willemite

Description Tabs

Description
Locality: 
Su Elzu, Ozieri, Sassari Province, Sardinia, Italy
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
2.6 × 2.1 × 2.1 cm
Description

some white rhombs of otavite and in another vug, several colourless prisms of willemite

Mineral Data
What's on the rock

Otavite

Formula: 
CdCO3
Strunz: 
5.AB.05
Crystal System: 
Hexagonal
Hardness: 
3.5 - 4.0
Streak: 
White
Type Locality: 
Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto Region (Oshikoto), Namibia

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