Polished Green Opal slab GRN108 lepidolite Dimensions at widest points approximately

Dimensions at widest points approximately 130 mm x 110 mm x 8 mm thick

135 mm x 110 mm x 7 mm thick

100 mm x 50 mm  x 30 mm

Dimensions at widest points approximately 130 mm x 75 mm x 35 mm thick

Dimensions at widest points approximately 140 mm x 110 mm x 50 mm thick

Polished Green Opal slab GRN108 lepidolite Dimensions at widest points approximatelyGRN108 Green Opal slab, cut and polished on one side . Dimensions at widest points approximately 125 mm x 80 mm x 14 mm thick Weighs 232 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.