What are the different types of meteorites?
Stony meteorites, the most common type of meteorite, are composed of approximately 75 to 90 percent silicon-based minerals, 10 to 25 percent nickel-iron alloy, and trace amounts of iron sulfide. Stony meteorites account for 94 percent of observed meteorite falls; of the two subgroups, chondrites are the most abundant, making up approximately 86 percent of all falls.