Earth's Oldest Rock, Acasta Gneiss (Canada) #05

Description

A sample of Acasta Gneiss, the oldest rock in the world.  It is found in Canada, on an island 300km north of yellowknife and is the oldest known intact fragment of the Earth's crust, dating to 3.6 - 4 billion years old.

This piece comes stored in an acrylic case with padding.

Size: 0.63 inches

Locality: Northwest Territories, Canada