Polished fossil stromatolite slab. Domal from Irregully formation IRR129 Irregully formation Sections consist of a chaotic

Sections consist of a chaotic mixture of dolomite and/or stromatolite fragments set in a matrix of mudstone and/or coarsely crystalline dolomite

Dimensions approximately 170mm x 100mm x 7mm thick

Dimensions at widest points approximately 190 mm x 110 mm x 7 mm thick

Dimensions at widest points approximately 180 mm x 90 mm x 11 mm thick

A rough rock

Polished fossil stromatolite slab. Domal from Irregully formation IRR129 Irregully formation Sections consist of a chaoticIRR 129 Fossil stromatolite slab, polished on one side. From the Proterozoic "Irregully Formation", age approx. 1. 1 billion years. Not formally identified but possibly Paniscollenia. Dimensions at widest points approximately 180 mm x 90 mm x 11 mm thick. It weighs 368 grams..