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Tourmaline

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ESM782817

Tourmaline

Description Tabs

Description
Locality: 
Neuschwaben Farm 73, Karibib, Erongo Region, Namibia
Class: 
Single Crystal
Size Range: 
Thumbnail (1-3cm)
Size: 
1.5 × 0.4 × 0.3 cm
Description

A gemmy blue-green terminated tourmaline crystal

Mineral Data
What's on the rock

Tourmaline

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