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

100 mm x 50 mm  x 30 mm

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

Dimensions at widest points approximately 260 mm x 150 mm and 10 mm thick

SU175  Sunset Jasper rough rock

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.