Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Schorl Quartz & Orthoclase

Views:
Watches:
NST648760

Schorl Quartz & Orthoclase

Description Tabs

Description
Locality: 
Brandberg, Dâures, Erongo Region, Namibia
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 4.5 × 3.8 cm
Largest Crystal: 
3.80cm
Description

A typical pegmatite specimen showing schorl and quartz on orthoclase-rich matrix.

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

Orthoclase

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