Description
From Demons Bluff
105 mm x 95 mm x 20 mm thick
Dimensions at widest points approximately 150 mm x 100 mm x 90 mm thick
Weighs: 996 grams
Dimensions approximately 100 mm x 75 mm x 8 mm thick
Polished Green Opal slab GRN108 Marramamba From Demons BluffGRN108 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.