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Topaz Orthoclase & Quartz

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ESM573751

Topaz Orthoclase & Quartz

Description Tabs

Description
Locality: 
Shigar District, Gilgit-Baltistan, Pakistan
Class: 
Combination
Size Range: 
Small cabinet (7-10 cm)
Size: 
6.2 × 7.2 × 7.4 cm
Description

Gemmy terminated topaz crystal with orthoclase and quartz 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

Orthoclase

Formula: 
KAlSi3O8
Strunz: 
9.FA.30
Hardness: 
6.0
Streak: 
White

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White