Shatter-cone meaning

shătər
A conical fragment of rock that is formed from the high pressure of volcanism or meteorite impact and has striations radiating from the apex.
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A cone-shaped fragment of rock, probably formed by violent shock waves, as from meteoritic impact or atomic explosions.
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A fractured, conical fragment of rock that has striations radiating outward from the apex. Shatter cones are believed to form when rocks are subjected to shock waves associated with a meteoric impact. They are typically between a few centimeters and a few meters long.
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