Polished Lime Magnesite specimen. MAP218 rock blocks Dimensions at widest points approximately

Dimensions at widest points approximately 140 mm x 105 mm x 70 mm thick

A trade name for metamorphosed magnesian tholeiite (basalt)

270 mm x 100 mm x 50 mm thick

Dimensions at widest points approximately 160 mm x 130 mm x 40 mm thick

NJ464   Noreena Jasper slab

Polished Lime Magnesite specimen. MAP218 rock blocks Dimensions at widest points approximatelyMAP218. Magnesite (Lemon chrysoprase) rough rock, cut and polished on one side with a natural back. Half of a complete nodule ! Dimensions at widest points approximately 120 mm x 70 mm x 45 mm thick. Weighs 596 grams. The subtle lime green colouration is caused by the presence of nickel mineralisation. From north of Kalgoorlie , Western Australia.