Polished fossil stromatolite. Alcheringa narrina. ALC160 polished noreena CH438 Chrysoprase slab polished on

CH438  Chrysoprase  slab polished  on one side

73 mm x 60 mm x 58 mm

Weighs 162 grams

Dimensions at widest points approximately 60 mm x 55 mm x 23 mm thick

Approximate dimensions at widest points 160 mm  x 90 mm  x 40 mm thick

Polished fossil stromatolite. Alcheringa narrina. ALC160 polished noreena CH438 Chrysoprase slab polished onALC160 Fossil stromatolite , polished on one side with natural weathered exterior on rear. Alcheringa narrina from the Archaean Meentheena Member within the Tumbiana Formation. Age is approx. 2. 7 billion years. From near Nullagine in Western Australia. Dimensions at widest points approx. 110 mm x 70 mm x 30 mm thick. Weighs 404 grams.