4.75cts - Yowah Nut Kernel Opal. Australian Boulder Opal australian A beautiful Queensland Boulder Opal

A beautiful Queensland Boulder Opal from the bubble band formation

cut to desirable oval shapes

Formation - Bubble band

solid Australian Boulder Seam Opal from Winton

4.75cts - Yowah Nut Kernel Opal. Australian Boulder Opal australian A beautiful Queensland Boulder OpalA 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 rockpool pattern framed by ironstone. Cut to a freeform cabochon with a quality finishing polish. Total weight 4. 75cts approx. Area of Mine Yowah, Outback Queensland, Australia Dimensions 18. 4mm x 9. 8mm x 3. 2mm approx. Formation Yowah nut Shape freeform Colours blue, green