Polished fossil stromatolite. Asperia digitata YD110

YD110.   Fossil stromatolite slab polished on one side.

Asperia digitata (formerly Yelma digitata) from the Proterozoic "Yelma Formation".  

Age is approx. 1.7 billion years.

From near Wiluna in Western Australia.

Dimensions approx.  130 mm x 90 mm x 5 mm thick.

Weighs 142 grams.