Polished fossil stromatolite slab. Alcheringa narrina. ALC158 Wanong Dendritic Opal cut and polished on one

cut and polished on one side at right angles to crystal growth

Dimensions at widest points approximately 190 mm x 135 mm x 60 mm thick

POT134  Tumble polished Pink Opal from Mooka Creek

Approximate dimensions at widest points 100 mm  x 70 mm  x 40 mm thick

Contour polished Chrysoprase from near Newman

Polished fossil stromatolite slab. Alcheringa narrina. ALC158 Wanong Dendritic Opal cut and polished on oneALC158 Fossil stromatolite slab, polished on one side. Alcheringa narrina from the Archaean Meentheena Member within the Tumbiana Formation. Age is approx. 2. 7 billion years. From near Nullagine in Western Australia. Dimensions at widest points approx. 160 mm x 90 mm x 17 mm thick. Weighs 493 grams.