Polished Green Opal display specimen GRN81 #googleimages Dimensions approximately 170mm x 45mm

Dimensions approximately 170mm x 45mm x 15-45mm thick

Desert Sunset slab

It occurs in the Pinyalling Hills which are located in the midwest region of Western Australia

180 mm x 105 mm x 40 mm thick

Dimensions at widest points approximately 100 mm x 80 mm x 55 mm thick

Polished Green Opal display specimen GRN81 #googleimages Dimensions approximately 170mm x 45mmGRN81 Green Opal & Magnesite rough rock, cut and polished on one side with a rough, naturally weathered back and a cut base to stand on. Dimensions at widest points approximately 155 mm x 80 mm x 60 mm thick Weighs 1,216 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