Polished fossil stromatolite. Asperia ashburtonia. ASP130 green stones Dimensions at widest points approximately

Dimensions at widest points approximately 180 mm x 95 mm x 12 mm thick

Bauxite is the main raw material used in the commercial production of aluminium

Dimensions: approximately 115 mm high x 75 mm x  45 mm thick

305 mm x 125 mm x 13 mm thick & weighs 918 grams

Polished fossil stromatolite. Asperia ashburtonia. ASP130 green stones Dimensions at widest points approximatelyASP130. Fossil stromatolite polished on one side with natural weathered exterior. Asperia ashburtonia from the Proterozoic "Duck Creek Dolomite". Age is approx. 2 billion years. From near Paraburdoo in Western Australia. Approx. 270 mm x 100 mm x 50 mm thick. Weight is 1,704 grams.