Achondrite have a Smooth, Fusion Liquid Melt Crust with irregular ripple pattern on the basaltic,
When a meteorite falls through the Earth's atmosphere a very thin layer on the outer surface melts. This thin crust is called a fusion Melt Crust. It is often Jet Black and looks like an eggshell coating the rock.
Achondrites lack chondrules, originate on differentiated planetary bodies with a distinct core and crust), such as asteroids, planets, or moons, and were reformed from molten fragments that were flung into space. Fresh meteorite fusion crusts are smooth, shiny, glassy, and darker colored than the stoney inside of the meteorite.
Their One Of The Rarest types of meteorites, the achondrites, do not attract magnets for the same reason that most earth rocks do not attract magnets - they do not contain iron-nickel metal. (Achondrites) During a meteorite's 10- to 15-second Entry trip through the atmosphere, air friction Velocity & Extreme heat on the meteor surface. This friction can melt the meteorite, and can carry away up to 90 percent of the original mass, leaving interesting surface features.