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Tourmaline

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MGR970372

Tourmaline

Description Tabs

Description
Locality: 
Stak Nala, Gilgit-Baltistan, Pakistan
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.9 × 6.1 × 4.5 cm
Description

Interesting matrix specimen of tourmaline from Pakistan. There are two crystals with a perfect termination and a waterclear cap almost paralell next to each other. The lower part of them fades from light green to a super intense colour at the bottom. Beside there are some more which are partially intergrown in the snow-white albite matrix.

Mineral Data
What's on the rock

Tourmaline

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