Dravite — Yinnietharra, WA

Dravite from Yinnietharra Station in the Upper Gascoyne, Western Australia.

Yinnietharra is known worldwide for its large, well-formed brown dravite crystals, the magnesium-rich member of the tourmaline group. They grow in mica-rich schist on Morrissey Hill, in the Proterozoic rocks of the Gascoyne Province.

70 × 40 mm, 200 g