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Quartz Psm K Feldspar & Schorl

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Quartz Psm K Feldspar & Schorl

Pseudomorph

Description Tabs

Description
Locality: 
Erongo Mountains, Karibib, Erongo Region, Namibia
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
11.2 × 9.5 × 5 cm
Largest Crystal: 
5.50cm
Weight: 
552.00gr
Description

Quartz and K feldspar crystals from Erongo. This pocket came out on the 5th January 2018...

Mineral Data
What's on the rock

Quartz

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

K Feldspar

Synonym Of: 

Microcline

Formula: 
KAlSi3O8
Strunz: 
9.FA.30
Hardness: 
6.0 - 6.5

Orthoclase

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

Sanidine

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

Schorl

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