Description
Approximate weight of each piece is between 55 and 150 grams
Dimensions at widest points approximately 160 mm x 90 mm x 10
Weighs 204 grams
Dimensions at widest point approximately 115 mm x 120 mm x 60 mm
Weighs 868 grams
Polished Green Opal rock GRN102 Marra Mamba Tiger Eye Approximate weight of each pieceGRN102 Green Opal & Magnesite rough rock, cut and polished on one side with a rough, naturally weathered back Dimensions at widest points approximately 90 mm x 50 mm x 40 mm thick Weighs 340 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.