Polished Pink Opal slab POP200 dendrites Alcheringa narrina from the Archaean

Alcheringa narrina from the Archaean Meentheena Member within the Tumbiana Formation

90 mm x 60 mm x 40 mm thick

Dimensions at widest points approximately 90 mm x 60 mm x 30 mm thick

Dimensions at widest points approximately 220 mm x 150 mm x 50 mm thick

4 billion years

Polished Pink Opal slab POP200 dendrites Alcheringa narrina from the ArchaeanPOP200 Pink Opal slab, polished on one side . Approximate dimensions at widest points 130 mm x 110 mm x 14 mm thick Weight 293 grams The interesting, drusy lined cylindrical cavity on the rear of the slab is all that remains of a fossil belemnite which was a squid like creature with a tapering torpedo or bullet shaped body. From Mooka Creek near the Kennedy Ranges, Western Australia.