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Dravite

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ESM780565

Dravite

Description Tabs

Description
Locality: 
Yinnietharra, Upper Gascoyne Shire, Western Australia, Australia
Class: 
Crystal Group/Cluster
Size Range: 
Museum (18cm plus)
Size: 
18 × 8 × 7 cm
Description

Lustrous parquetted dark brown dravite crystals on mica

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