Polished Green Opal slab GRN98. crazy lace Dimensions at widest points approximately

Dimensions at widest points approximately 70 mm x 50 mm x 18 mm thick

OG179   Polished orbicular granite with natural rough back

red jasper and chatoyant golden tiger eye

Dimensions approximately 340 mm x 180 mm x 9

Polished Green Opal slab GRN98. crazy lace Dimensions at widest points approximatelyGRN98 Green Opal & Magnesite slab, cut and polished on one side . Dimensions at widest points approximately 110 mm x 85 mm x 10 mm thick Weighs 156 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..