Description
Dimensions at widest points approximately 85 mm x 50 mm x 20 mm thick
85 mm x 90 mm x 30 - 35 mm thick
PA223 An Agate slab
It weighs 461 grams
It occurs in a geological unit called the "Mt
Polished fossil stromatolite. Pseudogymnosolenid type. DOG168 ashburton agate Dimensions at widest points approximatelyDOG168 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. 85 mm x 85 mm x 10 mm thick. Weighs