Polished Green Opal rock GREEN85 green Weight is 746 grams

Weight  is 746 grams

Please be aware that this stone is not particularly suited to lapidary work

Dimensions at widest points approximately 190 mm x 150 mm x 30 - 65 mm thick

MN125  Magneprase slab

Dimensions at widest points approximately 145 mm x 80 mm x 7

Polished Green Opal rock GREEN85 green Weight is 746 gramsGREEN85 Green Opal & Magnesite rough rock, cut and polished on one side with a rough, naturally weathered back Dimensions at widest points approximately 170 mm x 70 mm x 50 mm thick Weighs 622 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.