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Tourmaline

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RPL939138

Tourmaline

Description Tabs

Description
Locality: 
Carclaze China Clay Pit, Carluddon, Treverbyn, Cornwall, United Kingdom
Class: 
Massive/Crystalline
Size Range: 
Small cabinet (7-10 cm)
Size: 
9.5 × 5.5 × 2.5 cm
Largest Crystal: 
1.20cm
Weight: 
192.00gr
Description

A solid mass of slim intergrown black striated schorl to about 1.2cm.  A rich example from an unusual location.

Mineral Data
What's on the rock

Tourmaline

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

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