Igneous rock

Igneous rock classification is based in two main features: the modal mineralogy and grain size, which is also a criterion to distinguish

Igneous rocks Igneous rocks are formed by solidification of cooled magma either below or above the surface of the earth

therock88 Some igneous rocks have a mix of coarse-grained minerals surrounded by a matrix of fine-grained material in a texture called porphyritic The

rocket878 Igneous rocks are formed from the cooling and solidification of molten rock, also known as magma or lava Magma is found deep within the Earth's mantle, where