Acasta Gneis 4 Milliarden Jahre alter Stein ältester bekannter Erdstein Kanada
Acasta Gneiss – 3.6–4 Billion Year Old Rock from Northwest Territories, Canada. Acasta Gneiss is part of the ancientAcasta Gneiss Complex, located near Great Slave Lake in Canada. Genuine Acasta Gneiss from Northwest Territories, Canada.