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Another "shock wave frozen in stone"! Remnant of the giant impact at Beaverhead, Montana about
600 million years ago. The rise of the Rocky Mountains distorted the crater, but it seems to have
originally been over 60 miles in diameter!
Beautiful red quartzite shatter cone with many angular faces, from among what one expert called the
"finest shatter cones on Earth".
Stunning, classic shatter cone "horsetails" going in all directions on ALL sides of this beauty.
6 1/4" W X 4" W X 2" D
Weight: 2 lbs.