Polished fossil stromatolite. Asperia ashburtonia. ASP130 green stones PC116 Chalcedony/chrysoprase slab

PC116 Chalcedony/chrysoprase slab

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

Dimensions approximately 185 mm x 95 mm x 6 mm thick

Dimensions at widest points approximately 120 mm x 65 mm x 12 mm thick

PA226  An Agate nodule

Polished fossil stromatolite. Asperia ashburtonia. ASP130 green stones PC116 Chalcedony/chrysoprase slabASP130. 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.