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Demantoid

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TBM806053

Demantoid

New Discovery

Description Tabs

Description
Locality: 
Dossi di Franscia, Campo Franscia, Lanzada, Lanterna Valley, Malenco Valley, Lombardy, Italy
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.5 × 3 × 2.5 cm
Weight: 
23.00gr
Description

Classic "acorn" of demantoide crystal. 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

Demantoid

Variety Of: 

Andradite

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