Polished fossil stromatolite. Alcheringa narrina. ALC156 stand ups Dimensions at widest points approximately

Dimensions at widest points approximately 180 mm x 90 mm x 11 mm thick

Also called Lemon or Citron Chrysoprase

Dimensions approximately 170 mm x 130 mm x 15 mm thick

160 mm x 130 mm x 7 mm thick

Polished fossil stromatolite. Alcheringa narrina. ALC156 stand ups Dimensions at widest points approximatelyALC156 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.