Polished Green Opal rock GRN110 peanut Dimensions at widest points approximately

Dimensions at widest points approximately 170 mm x 155  mm x 13 mm thick

Weight is 619 grams

OG204   A matching pair of polished Orbicular Granite halves with natural rough backs

160 mm x 75 mm x 10 mm

Dimensions at widest points approximately 120 mm x 120 mm x 7

Polished Green Opal rock GRN110 peanut Dimensions at widest points approximatelyGRN110 Green Opal rough rock, cut and polished on one side with a rough, naturally weathered back Dimensions at widest points approximately 85 mm x 50 mm x 45 mm thick Weighs 279 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.