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Dravite

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PDM874873

Dravite

Gem Crystal

Description Tabs

Description
Locality: 
Mwajanga, Simanjiro District, Manyara Region, Tanzania (United Republic)
Class: 
Single Crystal
Size Range: 
Thumbnail (1-3cm)
Size: 
1.6 × 1.3 × 1.2 cm
Description

Floater striated crystal of dravite tourmaline of an intense bottle green colour and superb vitreous lustre. It has a contact with the matrix and a small piece of white quartz, and the general condition is very good.

From a recent find made in 07/2021.

Mineral Data
What's on the rock

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

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