Polished Green Opal slab GRN105 Rhodonite Weighs 880 grams

Weighs 880 grams

Dimensions at widest points approximately 95 mm x 75 mm x 40 mm thick

Dimensions approximately 165mm x 40mm x 5-45mm thick

Dimensions at widest points approximately 160 mm x 115 mm x 12 mm thick

Polished Green Opal slab GRN105 Rhodonite Weighs 880 gramsGRN105 Green Opal & Magnesite slab, cut and polished on one side . Dimensions at widest points approximately 140 mm x 80 mm x 12. 5 mm thick Weighs 224 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..