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Tourmaline

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BMM567297

Tourmaline

Description Tabs

Description
Locality: 
Davib Ost Farm 61, Karibib, Erongo Region, Namibia
Class: 
Crystal Group/Cluster
Size Range: 
Small cabinet (7-10 cm)
Size: 
8 × 5.5 × 5.5 cm
Description

Description: Very attractive cluster of mirror-shiny, superbly terminated black tourmaline crystals with bright hyalite opal on the termination. Highly lustrous rock crystals are between the tourmaline crystals. No significant damage to report.

Mineral Data
What's on the rock

Tourmaline

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