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Tourmaline

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MGR703078

Tourmaline

Description Tabs

Description
Locality: 
Mawi, Nuristan Province, Afghanistan
Class: 
Single Crystal
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.8 × 0.8 × 0.7 cm
Description

Please note that we didn´t use any backlight for the photos - that is the natural appearance of teh crystal under daylight - a few important indicators: the specimen is double terminated, both end points are razor, sharp and highly lustrous. The crystal shows excellent luster all around, no less attractive side is present, no contacts, no damages! The translucency is is on very high level - so this fine blue color with minor zones of blue green is well visible even without any backlight.

Mineral Data
What's on the rock

Tourmaline

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