Polished Green Opal slab GRN108 purple Dimensions approximately 120 mm x

Dimensions approximately 120 mm x 80 mm x 9 mm thick

60 - 80 mm diameter and weigh between 190 - 420 grams each

OG190   A matching pair of polished Orbicular Granite halves with natural rough backs

95-100 mm x 85 - 95 mm x 20 - 35 mm thick

CH439  Chrysoprase  slab polished  on one side

Polished Green Opal slab GRN108 purple Dimensions approximately 120 mm xGRN108 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.