Polished Green Opal rock GRN95 brecciated Weighs 236 grams

Weighs 236 grams

Dimensions approximately 145 mm x 100 mm x 55 mm thick

140 mm x 70 mm  x 8 mm

SU169  Sunset Jasper slab

95 mm x 55 mm x 65 mm

Polished Green Opal rock GRN95 brecciated Weighs 236 gramsGRN95 Green Opal & Magnesite rough rock, cut and polished on one side with a rough, naturally weathered back Dimensions at widest points approximately 190 mm x 100 mm x 90 mm thick Weighs 1,092 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.