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Tourmaline

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MGR742321

Tourmaline

Description Tabs

Description
Locality: 
Paprok, Kamdesh District, Nuristan Province, Afghanistan
Class: 
Single Crystal
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.6 × 2.2 × 2.1 cm
Description

 A more   uncommon sample from this famous locality. The habit is like a ton with   curved vertical edges. All faces are very glossy. The color is green with a   touch of yellow and the crystal shows a "cat-eye" effect, this   effect is much more better visible in person. Hard to photograph, much better   in person. No significant damages to report, 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