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Opal

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Opal

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Description
Locality: 
Case Montanini Quarry, Sant'Andrea Bagni, Parma Province, Emilia-Romagna, Italy
Size Range: 
Cabinet (10-18 cm)
Size: 
10 × 7 × 4 cm
Description

From a relatively new find in the italian appennines these white perlaceous opal
Shipment cost worldwide 10 USD. Discounts for multiple specimens.( VOP7 )

Mineral Data
What's on the rock

Opal

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