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Tourmaline

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PCZ553177

Tourmaline

Description Tabs

Description
Locality: 
Ambatondrazaka, Alaotra-Mangoro, Madagascar
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.5 × 2.5 × 2 cm
Description

A nice little group of schorl crystals up to 1.8 cm in length from a rare locality.

Mineral Data
What's on the rock

Tourmaline

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