This is a great specimen of Morton Gneiss. It has been cut flat on the left and right side, and is rough otherwise.
Morton Gneiss is among some of the oldest rocks on Earth. In fact, it is the oldest rock unit in the United States. Composed of Archean-age migmatitic gneiss, it has been dated to 3.6 billion years old.
XL Size: 53mm L X 30mm W X 36mm D, Weight: 119.5 grams
This is the exact specimen for sale.
Ships with information and COA. Guaranteed Authentic.