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Tourmaline

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MGR718981

Tourmaline

Description Tabs

Description
Locality: 
Cruzeiro Mine, Doce Valley, Minas Gerais, Brazil
Class: 
Single Crystal
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.8 × 0.7 × 0.6 cm
Description

A sharp terminated, lustrous and very clear crystal with grass green colour and red zoning at the endpoints. The same high quality all around, only bottom was on the rock.

Mineral Data
What's on the rock

Tourmaline

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