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Otavite & Willemite

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SMM680026

Otavite & Willemite

Rare Mineral

Description Tabs

Description
Locality: 
Su Elzu, Ozieri, Sassari Province, Sardinia, Italy
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1 × 0.3 × 0.5 cm
Description

Small but very nice sample with sharp single crystals from the mine of Su Elzu. This now defunct small mine, in the past, gave outstanding samples, almost certainly among the best in the world, of the rare cadmium carbonate otavite. Very close to the perfection.

Boxed with Label
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

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