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Topaz

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CHA126533

Topaz

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Description
Locality: 
Mount Arci, Morgongiori, Oristano Province, Sardinia, Italy
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.8 × 2.9 × 2.7 cm
Description

some tufts of colourless crystals of topaz in cavity from "conca cannas quarry"

Mineral Data
What's on the rock

Topaz

Formula: 
Al2(SiO4)(F,OH)2
Strunz: 
9.AF.35
Crystal System: 
Orthorhombic - Dipyramidal
Hardness: 
8.0
Streak: 
White

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