Polished fossil stromatolite. Alcheringa narrina. ALC150 polished snakeskin jasper Dimensions at widest points approximately

Dimensions at widest points approximately 125 mm x 110 mm x 19 mm thick

Variscite rough rock

All reasonably uniform in size (roughly 20 - 30 mm diameter} A bulk assortment

Quartz crystal cavity

Weight  is 456 grams

Polished fossil stromatolite. Alcheringa narrina. ALC150 polished snakeskin jasper Dimensions at widest points approximatelyALC150 Fossil stromatolite polished on one side with natural weathered exterior. 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. 140 mm x 90 mm x 40 mm thick. Weighs 702 grams.