Dravite from May Downs Station, Mt Isa QLD

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

Dravite can be found in localities 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.

Specimen Details

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

ID #: JG0001

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

Hardness: 7 – 7.5

Acquisition Date: 06/08/2016

Crystal System: Trigonal

Lustre: Vitreous, resinous, dull

Dimensions: 43mm x 33mm x 35mm

Weight: 96g

Location: 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.