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Yowah & Koroit Opals > Opals $101 to $200

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Koroit Nut Opal   Origin Koroit,  Queensland Australia Opal Type Solid Opal Type 3 (Matrix  Opal) Approximate Size 1  11/16" x 15/16" x 3/16" (42mm x 24mm x 5mm) Colour & Description Koroit Nut matrix opal. The inside of the nut shows a centre of green and red opal seams in a matrix of silicated sandstone and ironstone. The outside of the nut has been cut to follow its natural undulating surface. The outside shows brilliant electric green-blue-red  pinfire sparkles against a very dark ironstone background. No pits or flaws in this stone and it has a very high polish. Transparency Opaque Cut Freeform Face Surface Flat cut on one side and undulating on the reverse Weight 53.70  Carats Treatment None CURVED SIDE FLAT SIDE 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.