Store will be temporarily closed until late February
GRN100 Green Opal & Magnesite slab, cut and polished on one side .
Dimensions at widest points approximately 160 mm x 75 mm x 11 mm thick
Weighs 283 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..