Polished fossil stromatolite. Pseudogymnosolenid type. DOG169 black jasper SJ152 A polished slab of

SJ152  A polished slab of Starry Jasper

Dimensions at widest points approximately 125 mm x 110 mm x 19 mm thick

KA139   Kumarina Agate

Weight 434 grams

Dimensions at widest points approximately 130 mm x 80 mm x 11

Polished fossil stromatolite. Pseudogymnosolenid type. DOG169 black jasper SJ152 A polished slab ofDOG169 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. 80 mm x 70 mm x 7 mm thick. Weighs 99