stony-iron meteorite

A major category of meteorite, consisting of a mixture of metallic and stony elements. There are two main types: pallasites and mesosiderites. Pallasites consist of olivine grains enclosed by metal. Typically there is twice as much olivine as metal by volume. Mesosiderites are agglomerations of silicates and metal, in roughly equal proportions. Stony-iron meteorites are also known as siderolites or lithosiderites.