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Schorl With Orthoclase

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KSC850239

Schorl With Orthoclase

Classic Locality

Description Tabs

Description
Locality: 
Ameib Farm 60, Usakos, Karibib, Erongo Region, Namibia
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 3 × 3 cm
Description

Fine miniture of sharp, super lustrous crystal of schorl tourmaline on matrix of twinned single crystal of orthoclase!The schorl is textbook and symmetric! The matrix crystak is covered by schorl and still one can recognise the twinned planes!No damage!

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

Orthoclase

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

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