Polished Green Opal rock GRN104 Rhodonite 110 mm x 75 mm

110 mm x 75 mm x 50 mm thick

POP182   Brecciated Pink Opal slab

Dimensions approximately 120 mm x 30 mm x 10 mm thick

SU181  Sunset Jasper slab

Dimensions at widest points approximately 75 mm x 50 mm x 28 mm thick

Polished Green Opal rock GRN104 Rhodonite 110 mm x 75 mmGRN104 Green Opal & Magnesite rough rock, cut and polished on one side with a rough, naturally weathered back Dimensions at widest points approximately 140 mm x 100 mm x 70 mm thick Weighs 1,334 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.