Polished fossil stromatolite. Pseudogymnosolenid type. DOG163 ashburton agate This piece has a smattering

This piece has a smattering of pyrite inclusions through it

120 mm x 70 mm x 45 mm thick

Weight is 3

From the Ashburton region in Western Australia

Polished fossil stromatolite. Pseudogymnosolenid type. DOG163 ashburton agate This piece has a smatteringDOG163 Fossil stromatolite slab, polished on one side An as yet unidentified stromatolite, form of Pseudogymnosolenid type. The stromatolite occurs as small digitate columns which are finely laminated. It probably grew in shallow water conditions with intermittent subaerial exposure. From an unassigned unit of the Wyloo Group. Age is approx. 1. 8 billion years. From south west of Newman Western Australia. Approx. 145 mm x 65 mm x 7 mm thick. Weighs