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Tourmaline

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RPL879931

Tourmaline

Description Tabs

Description
Locality: 
Belowda Beacon, Cornwall, United Kingdom
Class: 
Massive/Crystalline
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 3 × 3.3 cm
Largest Crystal: 
1.20cm
Weight: 
110.00gr
Description

An almost solid mass of slim intergrown black striated crystals to about 1.2cm. A rich example of schorl 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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