Description
banded chert
Small quartz crystals visible in cavity
Green Opal occurs at a location south of Kalgoorlie in the Eastern Goldfields of Western Australia
Weight is 509 grams
54 pieces of rough Beryl
Polished Green Opal rock GRN96 rare agate banded chertGRN96 Green Opal & Magnesite rough rock, cut and polished on one side with a rough, naturally weathered back Dimensions at widest points approximately 120 mm x 55 mm x 35 mm thick Weighs 322 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.