Pair of polished Magnesite halves. MAP194 mookalite The interesting cylindrical cavities are

The interesting cylindrical cavities are all that remain of fossil belemnites which were a squid-like creature with a tapering torpedo or bullet shaped body

Dimensions at widest points approximately 160 mm x 135 mm x 18 mm thick

Dimensions at widest points approximately 110 mm x 70 mm x 80 mm thick

DO176  Dendritic Opal rough rock

190 mm x 130 mm x 65 mm

Pair of polished Magnesite halves. MAP194 mookalite The interesting cylindrical cavities areMAP194. A matching pair of polished Magnesite (Lemon Chrysoprase) halves with natural rough backs. (A single nodule cut in half). The lime green colouration is caused by the presence of nickel mineralisation. Dimensions at widest points of each half approximately 110 mm x 70 mm x 40 mm thick. Weighs 968 grams. From north of Kalgoorlie, Western Australia.