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Andradite Var Demantoid

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TBM1002641

Andradite Var Demantoid

Classic Locality

Description Tabs

Description
Locality: 
Campo Franscia, Sondrio Province, Lombardy, Italy
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 2 × 2 cm
Weight: 
26.00gr
Description

Classic "acorn" of demantoide crystals. In Italy this typical pieces is called "seed of demantoide". The sample consists of many shiny crystals wrapped in asbestos fibers stabilized with 10% paraloid

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