Igneous rock (igneous from Latin igneus 'fiery'), or magmatic rock, is one of the three main rock types, the others being sedimentary and metamorphic. Igneous rocks are formed through the cooling and solidification of magma or lava. The magma can be derived from partial melts of existing rocks in either a planet 's mantle or crust.

Jan 31, 2024 · Igneous rocks form from the solidification of molten rock material. They are categorized based on their origin, texture, and mineral composition.

The meaning of IGNEOUS is formed by solidification of magma. How to use igneous in a sentence.

Jan 25, 2025 · igneous rock, any of various crystalline or glassy rocks formed by the cooling and solidification of molten earth material. Igneous rocks constitute one of the three principal classes of rocks, the others being metamorphic and sedimentary.

Igneous rocks (from the Latin word for fire) form when hot, molten rock crystallizes and solidifies. The melt originates deep within the Earth near active plate boundaries or hot spots, then rises toward the surface.

Feb 17, 2023 · The igneous rocks are one of the three main types of rock found on earth; the others are sedimentary rock and metamorphic rock. They are the hardest and heaviest rock on earth. They are also called the ‘new’ rocks or magmatic rocks.

Oct 19, 2023 · Igneous rocks form when magma (molten rock) cools and crystallizes, either at volcanoes on the surface of the Earth or while the melted rock is still inside the crust. All magma develops underground, in the lower crust or upper mantle, because of the intense heat there.

Nov 8, 2023 · Igneous rocks are “fire-born,” meaning that they are formed from the cooling and solidification of molten (melted) rock. The word igneous derives from ignis, the Latin word for “fire.” Molten rock material is known as magma until it …

Jul 9, 2023 · Igneous rocks are typically hard and dense, resistant to weathering, and often exhibit a crystalline structure. Intrusive rocks have larger crystals due to slower cooling, while extrusive rocks have smaller crystals resulting from rapid cooling. …

Intrusive igneous rocks crystallize below Earth's surface, and the slow cooling that occurs there allows large crystals to form. Examples of intrusive igneous rocks are: diabase , diorite , gabbro , granite , pegmatite , and peridotite .