Polished Magnesite slab. MAP197 atlantisite Dimensions at widest points approximately

Dimensions at widest points approximately 80 mm x 60 mm x 22 mm thick

Dimensions at widest points approximately 180 mm  x 70 mm wide x 7 mm thick

Dimensions at widest points approximately 150 mm  x 100 mm x 6

Weighs 172 grams

CH444  Chrysoprase  slab polished  on one side

Polished Magnesite slab. MAP197 atlantisite Dimensions at widest points approximatelyMAP197. Magnesite (Lemon chrysoprase) slab polished on one side. The lime green colouration is caused by the presence of nickel mineralisation. Dimensions at widest points approximately 135 mm x 125 mm x 8. 5 mm thick. Weighs 332 grams. From north of Kalgoorlie, Western Australia.