Polished Lime Magnesite specimen. MAP191 Green Opal Dimensions at widest points approximately

Dimensions at widest points approximately 190 mm x 160 mm x 37 mm thick

Dimensions approximately 185 mm x 95 mm x 6 mm thick

Weight 488 grams

Weighs 870 grams

Tumble polished Magneprase

Polished Lime Magnesite specimen. MAP191 Green Opal Dimensions at widest points approximatelyMAP191. Magnesite (Lemon chrysoprase) rough rock, cut and polished on one side with a natural back. Half of a complete nodule with intense colouration ! Dimensions at widest points approximately 115 mm x 105 mm x 90 mm thick. Weighs 1,735 grams. The subtle lime green colouration is caused by the presence of nickel mineralisation. From Yerilla, north of Kalgoorlie , Western Australia.