Polished fossil stromatolite. Pseudogymnosolenid type. DOG164 #gemstone Rough Chrysoprase

Rough Chrysoprase

220 mm x 220 mm x 50 mm thick

MN114  Magneprase slab

Measures approximately 225mm x 120mm and  10mm thick

Rainforest Jasper rough rock

Polished fossil stromatolite. Pseudogymnosolenid type. DOG164 #gemstone Rough ChrysopraseDOG164 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