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Tourmaline Var Dravite

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SYA199574

Tourmaline Var Dravite

Description Tabs

Description
Locality: 
Mwajanga, Simanjiro District, Manyara Region, Tanzania (United Republic)
Size Range: 
Thumbnail (1-3cm)
Size: 
2.7 × 1.8 × 1.3 cm
Largest Crystal: 
2.70cm
Description

A single transparent brown-yellow dravite crystal with an unusal shape and termination.

Mineral Data
What's on the rock

Tourmaline

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

Dravite

Formula: 
Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Strunz: 
9.CK.05
Crystal System: 
Trigonal
Hardness: 
7.0
Type Locality: 
Dobrova, Dravograd (Unterdrauburg), Slovenia

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

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