Polished fossil stromatolite. Alcheringa narrina. ALC156 Rain Forest Jasper 75 mm x 60 mm

75 mm x 60 mm x 8 mm thick

Rough Chrysoprase

Dimensions at widest points approximately 105 mm x 100 mm x 9 mm thick

OG151   Polished orbicular granite with natural rough back

Polished fossil stromatolite. Alcheringa narrina. ALC156 Rain Forest Jasper 75 mm x 60 mmALC156 Fossil stromatolite , polished on one side with natural weathered exterior on rear. Museum quality specimen ! 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. 300 mm x 205 mm x 50 mm thick. Weighs 4,730 grams.