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Demantoid

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GFM1027771

Demantoid

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Description Tabs

Description
Locality: 
Ehrenfriedersdorf, Erzgebirge, Saxony, Germany
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.2 × 2.6 × 1 cm
Description

 Light green, crystal aggregates of 1.5 cm (KS) to 3.5 cm (NS) made of bright green Andradite (Demantoid) crystals. Old and unique specimens found around 1930.

Mineral Data
What's on the rock

Demantoid

Variety Of: 

Andradite

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