Main Rock Types: Igneous, Sedimentary, Metamorphic Igneous rocks are rocks formed by the solidification of cooled magma. Magma is a fluid substance and theoretically it is formed at high temperature. It is molten rock formed at high temperature deep in the earth's crust. Rock starts to melt beyond a certain temperature and this temperature is theoretically located in a line called the solidus which below this line, solids begin to melt. Magma...... Similar Editorial : Main Massage Benefits by Robert. | Source : Chemistry Tutoring
