Igneous rock (from the Latin word ignis for fire) is one of the three main types of rocks (the others being sedimentary and metamorphic rocks).
Igneous rock (from the Latin word ignis for fire) is one of the three main types of rocks (the others being sedimentary and metamorphic rocks). Igneous rocks form when molten magma inside the Earth, near active plate boundaries or hotspots, rises towards the surface and cools. Mineral crystals and, sometimes, glass solidify from the magma … Read more