Occurrence, Texture, and Classification of Igneous Rocks

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

Igneous Rocks ▫ Igneous rocks are formed by the cooling of molten rock ▫ There are two major states of molten rock: Magma and Lava ▫ Magma is a form of red rock slot When the magma cools and solidifies beneath the earth's crust it is called intrusive igneous rock, while that which exits the crust and cools on