Polished Bauxite BAU128 Desert Sunset These rare stromatolites are from

These rare stromatolites are from the “Windidda Formation”

Dimensions approximately 120 mm x 65 mm x 8 mm thick

HEM133  Hematite geode half

Dimensions at widest points approximately 155 mm  x 80 mm wide x 8 mm thick

Dimensions approximately 100 mm x 90 mm x 90 mm thick

Polished Bauxite BAU128 Desert Sunset These rare stromatolites are fromBAU128. 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.