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Dravite

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CR703844

Dravite

Ex Dr Hartel Collection, (Germany)

Description Tabs

Description
Locality: 
Yinnietharra, Upper Gascoyne Shire, Western Australia, Australia
Class: 
Crystal Group/Cluster
Size Range: 
Cabinet (10-18 cm)
Size: 
11 × 9 × 8.5 cm
Weight: 
1 150.00gr
Description

A huge and sharp, wonderful double terminated brown crystal of dravite from an old collaction. Collected in 1975.

Ex Dr. Hartel collection, Germany

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