Polished fossil stromatolite. Pseudogymnosolenid type. DOG164 #gemstone 220 mm x 220 mm

220 mm x 220 mm x 50 mm thick

Rough Chrysoprase

Dimensions at widest points approximately 160 mm x 80 mm and 10 mm thick

Weighs:  645 grams

age approx

Polished fossil stromatolite. Pseudogymnosolenid type. DOG164 #gemstone 220 mm x 220 mmDOG164 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. 190 mm x 90 mm x 10 mm thick. Weighs