Polished Bauxite BAU131 asperia Dimensions approximately 70 mm x

Dimensions approximately 70 mm x 65 mm x 60 mm deep

Dimensions at widest points approximately 130 mm x 100 mm x 90 mm thick

765 million years Polymictic : a conglomerate which contains clasts (fragments) of many different rock types

TIR138 Tiger Iron rough rock

Weight is 148 grams

Polished Bauxite BAU131 asperia Dimensions approximately 70 mm xBAU131. Bauxite (laterite) rough rock, cut and polished on one side. Dimensions at widest points approximately 110 mm x 90 mm x 45 mm thick. Weighs 490 grams. Bauxite is the main raw material used in the commercial production of aluminium. Large reserves of this stone occur in Western Australia. This specimen is from east of the Darling Ranges just outside the city of Perth.