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Tantalite Quartz & Elbaite

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MGR1007122

Tantalite Quartz & Elbaite

Description Tabs

Description
Locality: 
Stak Nala, Gilgit-Baltistan, Pakistan
Class: 
Combination
Size Range: 
Thumbnail (1-3cm)
Size: 
1.5 × 1.7 × 1.2 cm
Description

What a combination… Here we have a rare tantalite which is combined with an intergrown crystal of elbaite at its base and additionally a blade of quartz at the front side. Very unique and beautiful thumbnail specimen.

Mineral Data
What's on the rock

Tantalite

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

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White

Elbaite

Formula: 
Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Strunz: 
9.CK.05
Hardness: 
7.5
Streak: 
White
Type Locality: 
Fonte del Prete, San Piero in Campo, Campo nell'Elba, Elba Island, Livorno Province, Tuscany, Italy...