Meteorites from outer space are made up of different minerals. Common mineral species include Olivine, Pyroxene, Kamacite, Taenite, Troilite, Cohenite, Graphite, Magnetite, Marmatite and Native Iron.
Meteorites can be divided into three main classes depending on their iron and nickel content. "Aerolite" contains mainly Olivine, Pyroxene and Feldspar; "Siderolite" contain equal proportions of silicate and nickel-iron alloys; "Siderite" contain iron and nickel alloys.