Polished Bauxite BAU128 purple Dimensions at widest points approximately

Dimensions at widest points approximately 150 mm x 115 mm x 60 mm thick

Dimensions at widest points approximately 175 mm x 130 mm x  9 mm thick

Dimensions at widest points approximately 115 mm x 105 mm x 90 mm thick

CH461  Chrysoprase slab

Polished Bauxite BAU128 purple Dimensions at widest points approximatelyBAU128. Bauxite (laterite) rough rock, cut and polished on one side. Dimensions at widest points approximately 150 mm x 100 mm x 70 mm thick. Weighs 1,173 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.