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Dravite

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PJM37623

Dravite

Description Tabs

Description
Locality: 
Yinnietharra, Upper Gascoyne Shire, Western Australia, Australia
Size Range: 
Cabinet (10-18 cm)
Size: 
6.5 × 13 × 8.5 cm
Largest Crystal: 
3.70cm
Description

Two large dark brown dravite crystals rest on a matrix of tan coloured micaceous schist. A number of smaller dravite crystals are scattered around the matrix

This is a great old time specimen, very few good matrix specimens survive the majority having had the matrix removed to reduce weigh and bulk when collected.

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
Earthstones Australia

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