Dravite from May Downs Station, Mt Isa QLD

Dravite is a relatively common form of Tourmaline commonly referred to as “Brown Tourmaline”.

Dravite can be found in localities around the world including areas such as Dobrova, Dravograd, Slovenia where some spectacular museum-grade pieces have been found.

I acquired this specimen from Greg at Blue Gems at the August 2016 Sydney Crystal Show.

Dravite Info

Chemical Formula: NaMg₃Al₆(BO₃)₃Si₆O₁₈(OH)₃F

Collection ID #: JG0001

Colour: Brownish-black, brown, dark orange-brown.

Hardness: 7 – 7.5

Acquisition Date: 6th August 2016

Crystal System: Trigonal

Lustre: Vitreous, resinous, dull

Dimensions: 43mm x 33mm x 35mm

Weight: 96g

Locale: May Downs Station, Mt Isa QLD, Australia.

Rarity of Mineral

Rare

Did you know!?
It can at times be hard to make an exact distinction between the minerals dravite and uvite.

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