Shatter Cone

Slate Islands shatter cone. Image Credit: SkyFall Meteorites (Mendy Ouzillou)

Conical fragment of rock with regular thin grooves (striae) that radiate from the apex of the cone. Shatter cones range in size from less than one centimeter to more than one meter across and are formed in fine-grained brittle rocks, such as limestone or quartzite. They result from the high pressure, high velocity shock wave produced by an impacting meteorite.

Some or all content above used with permission from J. H. Wittke.

 

 

 

 

 

 

Steinheim, Germany shatter cone. Image Credit: SkyFall Meteorites (Mendy Ouzillou)