A "shock wave frozen in stone"! Remnant of the giant asteroid 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 shaped like an arrowhead, with the characteristic "horsetail"
fracture patterns on both front and back of this gem. A great sample from among what one
expert called the "finest shatter cones on Earth".
Size: 5 W" X 3.5" H X 1.75" D
Weight: 11 ounces
Guaranteed Authentic: Jensan Scientifics, LLC
Comes with authenticity and info.