A type of meteorite containing mineral spheres called chondrules . Millimeter-sized mineral spheres found in stony chondrite meteorites. Chondrules are formed by re-melting of mineral grains in the solar nebula. A class of meteorites that lack chondrules. Achondrites are formed by igneous processes on or near the surface of larger asteroids or planets.
Many achondrites resemble igneous rocks on Earth, especially basalt.
Meteorites that originate on Mars or the Moon are achondrites. Click on the picture to see photos, prices, weights, and instructions on how to order meteorites . We have a separate photo catalog for each locality. The best-known achondrites form the HED group. HED stands for Howardite, Eucrite, Diogenite.