Polished Lime Magnesite specimen. MAP212 annular rings Dimensions at widest points approximately

Dimensions at widest points approximately 200 mm  x 150 mm x 7 mm thick

120 mm x 70 mm x 25 mm thick

Asperia digitata (formerly Yelma digitata) from the Proterozoic "Yelma Formation"

near Rockhampton in Queensland

Polished Lime Magnesite specimen. MAP212 annular rings Dimensions at widest points approximatelyMAP212. Magnesite (Lemon chrysoprase) rough rock, cut and polished on one side with a natural back. Rare webbed piece ! Dimensions at widest points approximately 90 mm x 90 mm x 40 mm thick. Weighs 519 grams. The subtle lime green colouration is caused by the presence of nickel mineralisation. From north of Kalgoorlie , Western Australia.