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Schorl & Quartz

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ESM529257

Schorl & Quartz

Description Tabs

Description
Locality: 
Shengus, Haramosh Mountains, Skardu District, Gilgit-Baltistan, Pakistan
Class: 
Combination
Size Range: 
Thumbnail (1-3cm)
Size: 
1.4 × 2.7 × 2.3 cm
Description

A cluster of black schorl crystals with a doubly terminated quartz and smaller quartz crystals 

Mineral Data
What's on the rock

Schorl

Formula: 
Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Strunz: 
9.CK.05
Hardness: 
7.0

Quartz

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