Polished fossil stromatolite. Pseudogymnosolenid type. DOG164 #gemstone Weighs 478 grams

Weighs 478 grams

age approx

MN114  Magneprase slab

220 mm x 220 mm x 50 mm thick

Rough Chrysoprase

Polished fossil stromatolite. Pseudogymnosolenid type. DOG164 #gemstone Weighs 478 gramsDOG164 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