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Tourmaline

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Watches:
MGR720520

Tourmaline

Description Tabs

Description
Locality: 
Commander Mine, Nadonjukin, Simanjiro District, Manyara Region, Tanzania (United Republic)
Class: 
Single Crystal
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.1 × 1.4 × 1.1 cm
Description

A really excellent Chrome-Dravite from this famous discovery. Many crystals need a lot of backlight to show this amazing internal color - not so here. This higly lustrous, sharp  terminated crystals shows emerald green color with intense yellow zoning at the lower half - and it shows this color even under daylight. In fact these are 2 paralell intergrown crystals, they llok great in each angle, 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