Polished fossil stromatolite. Alcheringa narrina. ALC142 ashburton agate Unusual colouration caused by natural
Baker’s notes & crumb story
Description
Unusual colouration caused by natural iron oxide weathering
Pilbaria sp
Dimensions at widest points are approximately 180 mm x 80 mm x 50 mm
Pink porphyry slab
Polished fossil stromatolite. Alcheringa narrina. ALC142 ashburton agate Unusual colouration caused by naturalALC142. Fossil stromatolite rough rock, cut and polished on one side, with great weathered rough 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. Approx. 95mm x 45mm x 30mm thick. Weighs 180grams.