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Yowah & Koroit Opals > Opals $101 to $200

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Koroit Nut Matrix Opal   Origin Koroit,  Queensland Australia Opal Type Solid Opal Type 3 (Matrix Opal) Approximate Size 1  7/16" x 13/16" x 3/16" (37mm x 20mm x 5mm) Colour & Description Koroit ironstone "Nut" opal.  A matrix of pale brown to red ironstone with beautiful patterns of bright blue and green opal. Colour on the front only. Transparency Opaque Cut Freeform Face Surface Cabochon  Weight 28.60 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.