Polished Bauxite slab BAU122 Irregully formation The amphibolite

The amphibolite

20 - 25 mm across

Conophyton garganicum australe from the Mesoproterozoic "Top Camp Formation"

Dimensions at widest points approximately 110 mm x 75 mm x 40 mm thick

Weighs 434 grams

Polished Bauxite slab BAU122 Irregully formation The amphiboliteBAU122. Bauxite (laterite) slab, cut and polished on one side. Dimensions at widest points approximately 120 mm x 100 mm x 14 mm thick. Weighs 366 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.