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Tourmaline

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ESM505389

Tourmaline

Description Tabs

Description
Locality: 
St Anns Mine, Mwami, Karoi District, Mashonaland West, Zimbabwe
Class: 
Combination
Size Range: 
Thumbnail (1-3cm)
Size: 
2.7 × 1.3 × 0.5 cm
Description

Green tourmaline crystal with a small topaz crystal

Mineral Data
What's on the rock

Tourmaline

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