Polished fossil stromatolite. Pseudogymnosolenid type. DOG169 black jasper bright blue chrysocolla

bright blue chrysocolla

From near Newman

SJ152  A polished slab of Starry Jasper

KA139   Kumarina Agate

Weight 434 grams

Polished fossil stromatolite. Pseudogymnosolenid type. DOG169 black jasper bright blue chrysocollaDOG169 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