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NJ435 A rough rock
XL108 Quartz crystal on matrix from the southern Pilbara
Weighs 136 grams
Dimensions approximately 170mm x 100mm x 7mm thick
Dimensions at widest points approximately 130 mm x 75 mm x 80 mm thick
Polished Green Opal slab GRN106 oldest agate in the world NJ435 A rough rockGRN106 Green Opal & Magnesite slab, cut and polished on one side . Dimensions at widest points approximately 225 mm x 160 mm x 13. 5 mm thick Weighs 570 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..
US$ 595.00
US$ 190.00
US$ 33.95