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Topaz & Mica

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FRN136363

Topaz & Mica

Description Tabs

Description
Locality: 
Haramosh Mountains, Gilgit-Baltistan, Pakistan
Size Range: 
Cabinet (10-18 cm)
Size: 
10.7 × 4.4 × 3.4 cm
Largest Crystal: 
3.50cm
Description

Two lovely gemmy, lustrous and pale blue crystals of topaz lie on the mica matrix.

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

Mica

Group Parent: 
Mica Group
Oriental Minerals