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Topaz

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PDM772433

Topaz

Description Tabs

Description
Locality: 
Itinga, Minas Gerais, Brazil
Class: 
Single Crystal
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 2.2 × 1.7 cm
Description

A well-developed terminated blue coloured topaz crystal of good lustre. It is formed by the prisms {120} and {110}, modified by {101}. It has crystal faces or contacts with other crystals, but it is not broken.

Ex. Isidoor Venesoen collection.

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

Current price

Starting price

10
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Start 27 Mar 18:00
End
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Shipping Information

Postage Area Price
Belgium
6
Europe, USA*
7
Asia, Oceania, N-S America*, Africa
8

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