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Andradite Var Demantoid

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PCZ707112

Andradite Var Demantoid

Description Tabs

Description
Locality: 
Usakos, Karibib, Erongo Region, Namibia
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
9.8 × 5.5 × 4 cm
Description

Reflective green demantoid crystals up to 0.5 cm across on a nicely contrasting off white matrix. An iuncommonly offered species from this locality. 

Mineral Data
What's on the rock

Andradite

Formula: 
Ca3Fe3+2(SiO4)3
Strunz: 
9.AD.25
Crystal System: 
Isometric
Hardness: 
6.5 - 7.0
Streak: 
White
Type Locality: 
Drammen, Buskerud, Norway

Demantoid

Variety Of: 

Andradite

Formula: 
Ca3Fe3+2(SiO4)3
Strunz: 
9.AD.25
Hardness: 
6.5 - 7.0
Peter Crozier Minerals