Polished Green Opal rock GRN111 picture jasper Dimensions at widest points approximately

Dimensions at widest points approximately 120 mm

Weighs 556 grams

Dimensions at widest points approximately 65 mm x 45 mm x 13 mm thick

Dimensions approximately 130 mm x 95 mm x 95 mm thick

Dimensions at widest points approximately 60 mm x 55 mm x 22 mm thick

Polished Green Opal rock GRN111 picture jasper Dimensions at widest points approximatelyGRN111 Green Opal rough rock, cut and polished on one side with a rough, naturally weathered back Dimensions at widest points approximately 145 mm x 60 mm x 55 mm thick Weighs 652 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.