Polished Green Opal rock GREEN85 quartz Dendritic Lilac Mookaite cut and

Dendritic Lilac Mookaite cut and polished on one side with a rough natural back

Weighs 315grams

Bauxite (laterite)  rough rock

Totally replaced by colourful chert

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

Polished Green Opal rock GREEN85 quartz Dendritic Lilac Mookaite cut andGREEN85 Green Opal & Magnesite rough rock, cut and polished on one side with a rough, naturally weathered back Dimensions at widest points approximately 170 mm x 70 mm x 50 mm thick Weighs 622 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 magnesite.