Polished Desert Sunset slab DS177 chalcedony All reasonably uniform in size

All reasonably uniform in size (roughly 15 - 20 mm diameter}

Totally replaced by colourful chert

MC105 Marillana Conglomerate slab

140 mm x 110 mm x 60 mm thick

IRR 125    Fossil stromatolite slab

Polished Desert Sunset slab DS177 chalcedony All reasonably uniform in sizeDS177 Desert Sunset slab, polished on one side . Dimensions at widest points approximately 180 mm x 100 mm x 25 mm thick. Weighs 744 grams. Desert Sunset is a banded iron formation that is comprised of alternating layers of red and yellow jasper and chert with narrow bands of black hematite. It comes from near Fields Find, a small abandoned gold mining centre in the Midwest region of Western Australia.