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Tourmaline

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VCV167359

Tourmaline

Description Tabs

Description
Locality: 
Serra Branca Pegmatite, Pedra Lavrada, Borborema Province, Paraiba, Brazil
Size Range: 
Thumbnail (1-3cm)
Size: 
1.9 × 0.8 × 0.5 cm
Largest Crystal: 
1.90cm
Description

Here is a lovely, unusual bicoloured tourmaline with a bright blue termination from the famous Paraiba region in Brazil.

Mineral Data
What's on the rock

Tourmaline

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