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Tourmaline Var Schorl

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ASA602960

Tourmaline Var Schorl

Description Tabs

Description
Locality: 
Davib Ost Farm 61, Karibib, Erongo Region, Namibia
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
3.8 × 10 × 5.7 cm
Description

Schorl is a real common and wide spread mineral. But these isolated perfect crystals on white matrix are more than aesthetic. A high quality piece with highly lustrous deep black crystals. An exceptional specimen of that black tourmaline

Mineral Data
What's on the rock

Tourmaline

Formula: 
A(D3)G6(T6O18)(BO3)3X3Z
Crystal System: 
Trigonal
Hardness: 
7

Schorl

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

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