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Opal

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TBM836075

Opal

Description Tabs

Description
Locality: 
Berceto, Parma Province, Emilia-Romagna, Italy
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 3.5 × 4 cm
Weight: 
59.00gr
Description

White globular spherules up to  4 mm diameter.

Mineral Data
What's on the rock

Opal

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