Polished Magnesite specimen. MAP168 petrified wood Dimensions at widest points approximately

Dimensions at widest points approximately 100 mm x 95 mm x 70 mm thick

Prehnite rough rock

Displays the internal zoning

Dimensions at widest points approximately 125 mm x 120 mm x 80 mm thick

75 mm x 50 mm  x 30 mm

Polished Magnesite specimen. MAP168 petrified wood Dimensions at widest points approximatelyMAP168. Magnesite (Lemon chrysoprase) rough rock, cut and polished on one side with a natural back. Dimensions at widest points approximately 100 mm x 60 mm x 35 mm thick. Weighs 366 grams. The subtle lime green colouration is caused by the presence of nickel mineralisation. From Eucalyptus, north of Kalgoorlie , Western Australia.