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Microcline Feldspar Quartz & Schorl

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RAF561701

Microcline Feldspar Quartz & Schorl

Classic Locality

Description Tabs

Description
Locality: 
Klein Spitzkopje, Karibib, Erongo Region, Namibia
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
13.5 × 7 × 7 cm
Largest Crystal: 
10.00cm
Weight: 
392.00gr
Description

A really attractive attractive combination of Feldspar, Microline, Schorl and Quartz specimen from Klein Spitzkoppe, Namibia. A good specimen! A large hand size specimen....

Mineral Data
What's on the rock

Microcline

Formula: 
KAlSi3O8
Strunz: 
9.FA.30
Crystal System: 
Triclinic - Pinacoidal
Hardness: 
6.0 - 6.5
Streak: 
White
Type Locality: 
Arendal, Aust-Agder, Norway

Feldspar

Group Parent: 
Feldspar Group

Quartz

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

Schorl

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