Polished Green Opal slab GRN106 striped jasper CH455 Chrysoprase slab

CH455  Chrysoprase slab

Dimensions at widest points approximately 95 mm x 80 mm x 6

Dimensions at widest points approximately 95 mm x 60 mm x 8 mm thick

Weight is 182 grams

It weighs 2

Polished Green Opal slab GRN106 striped jasper CH455 Chrysoprase slabGRN106 Green Opal & Magnesite slab, cut and polished on one side . Dimensions at widest points approximately 225 mm x 160 mm x 13. 5 mm thick Weighs 570 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..