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Opal Var Fiorite

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TBM1089340

Opal Var Fiorite

Classic Locality

Description Tabs

Description
Locality: 
Santa Fiora, Mount Amiata, Grosseto Province, Tuscany, Italy
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 2 × 1 cm
Largest Crystal: 
4.00cm
Weight: 
12.00gr
Description

Very nice  whitish pearly stalactites of Fiorite up to 40 mm, a variety of Opal, first discovered/collected at Santa Fiora in Tuscany. Historical discovery.

Mineral Data
What's on the rock

Opal

Formula: 
SiO2·nH2O
Strunz: 
4.DA.10
Hardness: 
5.5 - 6.5
Streak: 
White

Fiorite

Variety Of: 

Opal

Formula: 
SiO2·nH2O
Strunz: 
4.DA.10
Hardness: 
5.5 - 6.5
Formula: 
SiO2·nH2O
Type Locality: 
Santa Fiora, Mount Amiata, Grosseto Province, Tuscany, Italy ...