Polished Lime Magnesite specimen. MAP212 annular rings Asperia digitata (formerly Yelma digitata)

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

120 mm x 70 mm x 25 mm thick

140 mm x 80 mm x 45 mm

Dimensions at widest points approximately 170 mm x 120 mm x 6 mm thick

Dimensions at widest points approximately 160 mm  x 65 mm x 7

Polished Lime Magnesite specimen. MAP212 annular rings Asperia digitata (formerly Yelma digitata)MAP212. 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.