Polished Green Opal slab GRN97. dolomite 66 mm x 31 mm

66 mm x 31 mm x 6 mm thick dome

WAT104  Tumble polished Wyloo Agate

Kennedy Ranges

Dimensions at widest point approximately 190 mm x 75 mm x 55 mm

Dimensions approximately 115 mm x 70 mm x 11 mm thick

Polished Green Opal slab GRN97. dolomite 66 mm x 31 mmGRN97 Green Opal & Magnesite slab, cut and polished on one side . Dimensions at widest points approximately 115 mm x 70 mm x 12 mm thick Weighs 128 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..