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Tourmaline With Cleavelandite & Tantalite

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IKM824852

Tourmaline With Cleavelandite & Tantalite

Description Tabs

Description
Locality: 
Stak Nala, Gilgit-Baltistan, Pakistan
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.9 × 2.5 × 1.7 cm
Description

An unusual interesting double terminated tourmaline crystal with rare tantalite & cleavelandite , like this specimen very nice from the locality....

 

very nice specimen

Mineral Data
What's on the rock

Tourmaline

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

Cleavelandite

Variety Of: 

Albite

Formula: 
NaAlSi3O8
Strunz: 
9.FA.35
Hardness: 
6.0 - 6.5
Hardness: 
0.0

Tantalite

Group Parent: 
Tantalite-(Fe)-Tantalite-(Mn) Series

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