Polished fossil stromatolite slab. Asperia digitata YD118 John Citron chrysoprase Dimensions at widest points approximately

Dimensions at widest points approximately 130 mm high x 60 mm x 40 mm thick

Dimensions at widest points approximately 275 mm x 150 mm x 18

Dimensions at widest points approximately 50 mm x 40 mm x 34 mm thick

100 mm x 90 mm x 7

Weighs 444 grams

Polished fossil stromatolite slab. Asperia digitata YD118 John Citron chrysoprase Dimensions at widest points approximatelyYD118. 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. 270 mm x 170 mm x 10 mm thick. Weighs 1,245 grams.