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Yowah & Koroit Opals > Opals to $50

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Koroit Nut Matrix Opal   Origin Koroit,  Queensland Australia Opal Type Solid Opal Type 3 (Matrix  Opal) Approximate Size 1  5/16" x 13/16 " x 3/16" (34mm x 20mm x 5mm) Colour & Description Koroit Nut matrix opal. Brown ironstone matrix with a centre of brick red ironstone and turquoise green opal seams. The colour is on the front of the stone only. Transparency Opaque Cut Freeform Face Surface Cabochon Weight 31.90 Carats  Treatment None FRONT BACK SIZING PHOTO Click on any of the photos for an enlargement. Hit the "back" button on your browser to return here. Imperfections seen on highly enlarged photos are not necessarily visible or easily noticeable to the naked eye.