Polished fossil stromatolite slab. Asperia ashburtonia. ASP139 rare agate 280 mm x 130 mm
Description
280 mm x 130 mm x 10
DOT104 Tumble polished Dendritic Opal
Weighs 434 grams
From Stichtite Hill
Weighs 862 grams
Polished fossil stromatolite slab. Asperia ashburtonia. ASP139 rare agate 280 mm x 130 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.
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