17.9cts - Yowah Nut Kernel Opal. Double Sided Crystal Center rough A beautiful parcel of rough

A beautiful parcel of rough Yowah Nut Opals featuring partial Crystal Centres displaying flashes of blue and green colouration in transparent crystal opal

Great flashes of strong electric greens and blues on a dark black opal body tone

Shape - Elongated Oval

solid Australian Boulder Opal displaying blue and green colouration in tribal patterns contrasting with tan earth tones

17.9cts - Yowah Nut Kernel Opal. Double Sided Crystal Center rough A beautiful parcel of roughA beautiful and rare Australian Boulder Opal cut from a Yowah Nut with a partial Crystal Centre! This stone displays blue and green colouration in a pool of opal on one side and pinfire flashes of colour on the other. Cut to a freeform oval cabochon with a quality finishing polish. Total weight 17. 9cts approx. Area of Mine Yowah, Outback Queensland, Australia Dimensions 20. 3mm x 16. 6mm x 6. 7mm approx. Formation Yowah nut Shape Freeform oval