A stony meteorite representing differentiated planetary material. Because differentiation is an igneous process, these are igneous rocks or breccias of igneous rocks.
A type of meteorite. Achondrites make up 9% of the known meteorite population. They contain no chondrules and show evidence of differentiation. Many are composed of basalt and bear a striking similarity to Earth's mantle.
A stony meteorite without chondrules.
a meteorite produced by secondary processes on large asteroids that have differentiated
A type of stony meteorite containing very little iron or nickel.
An achondrite is a stony meteorite that is made of material similar to terrestrial basalts or plutonic rocks. Compared to the chondrites, they have all been differentiated and reprocessed to a lesser or greater degree due to melting and recrystallization on or within meteorite parent bodies. As a result, achondrites have distinct textures and mineralogies indicative of igneous processes.
