Shatter Cone

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 limestoneA common form of calcium carbonate (CaCO3). Other common forms of CaCO3 include chalk and marble. Click on Term to Read More or quartzite. They result from the high pressure, high velocity shock waveAbrupt perturbation in the temperature, pressure and density of a solid, liquid or gas, that propagates faster than the speed of sound. produced by an impacting meteoriteWork in progress. A solid natural object reaching a planet’s surface from interplanetary space. Solid portion of a meteoroid that survives its fall to Earth, or some other body. Meteorites are classified as stony meteorites, iron meteorites, and stony-iron meteorites. These groups are further divided according to their mineralogy and Click on Term to Read More.