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Tourmaline Var Dravite

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QBM1015059

Tourmaline Var Dravite

Gem Crystal

Description Tabs

Description
Locality: 
Commander Mine, Nadonjukin, Simanjiro District, Manyara Region, Tanzania (United Republic)
Class: 
Single Crystal
Size Range: 
Thumbnail (1-3cm)
Size: 
1.5 × 0.5 × 0.2 cm
Description

An absolutely gorgeous single gem tourmaline var. dravite crystal from Commander Mine, Manyara Region, Tanzania. The dravite is well shaped and sharp. The quality is fine – completely transparent and gem crystal with an intense green color to olive green at the base. It has a glassy luster. Complete all over. In excellent condition. On acrylic base.

Amazing gemminess!

Shipping weight up to 0.250 kg

#20841

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