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Topaz

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BMM830400

Topaz

Description Tabs

Description
Locality: 
Mina Veronica, El Copetillo, Villa García Municipality, Zacatecas, Mexico
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4 × 2.8 × 2.4 cm
Description

What a beauty: a group of high-gloss topaz crystals on bright rhyolite matrix. The main crystal shows a translucent cognac color and a good gloss. A really nice specimen with well-formed and large crystals!

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