Polished Magnesite specimen. MAP171 stand ups From the Strelley Pool Formation

From the Strelley Pool Formation in the Pilbara region of Western Australia

Dimensions at widest points approximately 70 mm x 35 mm x 30 mm thick

Weighs 834 grams

Weighs 112 grams

Dimensions at widest points approximately 95 mm x 70 mm x 60 mm thick

Polished Magnesite specimen. MAP171 stand ups From the Strelley Pool FormationMAP171. Magnesite (Lemon chrysoprase) rough rock, cut and polished on one side with a natural back. Chalcedony grading into silicated magnesite. Dimensions at widest points approximately 100 mm x 75 mm x 27 mm thick. Weighs 369 grams. The subtle lime green colouration is caused by the presence of nickel mineralisation. From Eucalyptus, north of Kalgoorlie , Western Australia.