Impact Breccia

These jumbles of glass and crushed rock are impact breccias. The dark, flattened and twisted fragments in the Ries breccia slab are pieces of impact glass. In samples from older craters such as Gosses Bluff, similar glass pieces have weathered to clay.

Group: Sedimentary
Catalog Number: USNM 116663
Locality: Ries Crater, Bayern, Germany , Germany