Polished Green Opal display specimen GRN94 dendrite 100 mm x 75 mm

100 mm x 75 mm x 25 mm

Dimensions at widest points are approximately 125 mm x 110 mm x 50 mm

Weight 636 grams

120 mm x 90 mm x 70 mm

It weighs 10

Polished Green Opal display specimen GRN94 dendrite 100 mm x 75 mmGRN94 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 180 mm x 90 mm x 65 mm thick Weighs 1,363 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