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Topaz & Tourmaline

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RBR518747

Topaz & Tourmaline

Description Tabs

Description
Locality: 
Shigar District, Gilgit-Baltistan, Pakistan
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 2.3 × 1.8 cm
Description

Selected fine topaz with some schorl on a little matrix. The topaz is excellent terminated, waterclear and shows very high luster. 

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

Tourmaline

Formula: 
A(D3)G6(T6O18)(BO3)3X3Z
Crystal System: 
Trigonal
Hardness: 
7

Seller Information

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