Polished fossil stromatolite slab. Asperia ashburtonia. ASP139 rare agate 140 mm x 125 mm

140 mm x 125 mm x 40 mm thick

Weighs 656 grams

280 mm x 130 mm x 10

Dimensions at widest points approximately 170 mm x 100 mm x 100 mm thick

From our mining leases near Grant's Patch in the Eastern Goldfields region of Western Australia

Polished fossil stromatolite slab. Asperia ashburtonia. ASP139 rare agate 140 mm x 125 mmASP139. Fossil stromatolite slab, polished on one side. Asperia ashburtonia from the Proterozoic "Duck Creek Dolomite". Unusual colouration caused by natural iron oxide weathering. Age is approx. 2 billion years. From near Paraburdoo in Western Australia. Approx. 150mm x 85mm, 7mm thick. It weighs 175 grams.