Igneous Rocks

igneous rock  Igneous rocks are formed from the solidification of molten rock material There are two basic types: 1) intrusive igneous rocks such as diorite, gabbro, Igneous rock, any of various crystalline or glassy rocks formed by the cooling and solidification of magma, which is a hot (600 to 1300 °C,

Igneous rocks Igneous rocks are formed by the crystallisation of a magma The difference between granites and basalts is in silica content and their Igneous rocks form from cooling magma Magma that erupts onto Earth's surface is lava The chemical composition of the magma and the rate at

Andesite Andesite is an extrusive igneous rock that is higher in silica than basalt and lower than rhyolite or felsite Click the photo to see Igneous rocks can be divided into four categories based on their chemical composition: felsic, intermediate, mafic, and ultramafic The diagram of Bowen's