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Chrome-bevel sheet on grid paper — specs and return notes filed under the bay.
Dimensions approximately 220 mm x 140 mm x 110 mm thick
CC157 Chrome chalcedony slab
Dimensions at widest point approximately 200 mm x 190 mm x 13 mm
Dimensions at widest points approximately 180 mm x 125 mm x 11 mm thick
150 mm x 100 mm x 45 mm
Polished Green Opal rock GRN96 dendritic opal Dimensions approximately 220 mm xGRN96 Green Opal & Magnesite rough rock, cut and polished on one side with a rough, naturally weathered back Dimensions at widest points approximately 120 mm x 55 mm x 35 mm thick Weighs 322 grams Green Opal occurs at a location south of Kalgoorlie in the Eastern Goldfields of Western Australia. The green colouration is caused by traces of nickel and or chromium. Sometimes it exhibits striking contrasting veins of magnesite.