Polished Magnesite specimen. MAP180 lemon chrysoprase Dimensions approximately 85 mm x

Dimensions approximately 85 mm x 65 mm x 7 mm thick

Dimensions at widest points approximately 160 mm x 150 mm x 19 mm thick

Dimensions at widest points approximately 375 mm x 240 mm x 15

Bauxite (laterite)  rough rock

TI277   Tiger Iron slab

Polished Magnesite specimen. MAP180 lemon chrysoprase Dimensions approximately 85 mm xMAP180. Magnesite (Lemon chrysoprase) rough rock, cut and polished on one side with a natural back. Dimensions at widest points approximately 240 mm x 70 mm x 60 mm thick. Weighs 1,261 grams. The subtle lime green colouration is caused by the presence of nickel mineralisation. From north of Kalgoorlie , Western Australia.