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Opal

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TPX918957

Opal

Fluorescent

Description Tabs

Description
Locality: 
Isabel Quarry, Valdemanco, La Cabrera, Madrid, Spain
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
9 × 4.6 × 1.8 cm
Weight: 
87.00gr
Description

Very interesting specimen of opal on granite matrix from this famous Spanish quarry. This opal fluoresces green under long wave ultraviolet light as you can see in the last photos.

Mineral Data
What's on the rock

Opal

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

Seller Information

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