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Hemimorphite & Smithsonite

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BSM36780

Hemimorphite & Smithsonite

Description Tabs

Description
Locality: 
Altenberg Mine, Kelmis, Verviers, Liège Province, Belgium
Size Range: 
Cabinet (10-18 cm)
Size: 
10 × 7.2 × 4.2 cm
Description

A cream coloured matrix with a layer of small rhombohedral crystals of smithsonite over which have formed a number of transparent bladed hemimorphite crystals. The Academy label gives "calamine" as the species and also locates the specimen at Altenberg, Saxony.

This is highly unlikely as the specimen resembles other classics from Belgium and is also from the William Jefferis Collection.

Mineral Data
What's on the rock

Hemimorphite

Formula: 
Zn4Si2O7(OH)2·H2O
Strunz: 
9.BD.10
Hardness: 
4.5 - 5.0
Streak: 
White
Type Locality: 
Băiţa Mining District (Baita Bihor; Rézbánya), Nucet, Bihor Co., Romania

Smithsonite

Formula: 
ZnCO3
Strunz: 
5.AB.05
Hardness: 
4.0 - 4.5
Streak: 
White

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