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Topaz With Quartz & Lepidolite

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KRM117255

Topaz With Quartz & Lepidolite

Description Tabs

Description
Locality: 
Doko, Basha Valley, Skardu, Gilgit-Baltistan, Pakistan
Size Range: 
Cabinet (10-18 cm)
Size: 
7 × 12.5 × 9 cm
Description

A spuerb specimen ,  rich of well terminated  lustrous , gemmy  topaz crystals incombination with quartz over lepidolite albite maxed matrix.

A very good spcimen from the locality.

 

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

Quartz

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

Lepidolite

Synonym Of: 

Mica Group

Formula: 
KLi2Al(Si4O10)(F,OH)2 to K(Li1.5Al1.5)(AlSi3O10)(F,OH)2
Group Parent: 
Mica
Hardness: 
2.5 - 3.5
Colour: 
Pink, light purple, light rose red
Streak: 
White