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Tourmaline

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SHS75565

Tourmaline

Description Tabs

Description
Locality: 
Merelani Hills, Arusha Region, Tanzania (United Republic)
Size Range: 
Thumbnail (1-3cm)
Size: 
1 × 1.1 × 1 cm
Description

Green 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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