1 a : formed by solidification of magma igneous rock. For this reason, they are called primary rocks. Igneous Rocks are formed by cooling or solidification of molten or partly molten material, i.e. of, relating to, or characteristic of fire. Igneous rocks are rocks formed from molten magma. Igneous rock is shaped via the cooling and solidification of magma or lava. Origin of Igneous Rocks The magma may be derived from partial melts of existing rocks in both a planet’s mantle or crust. The material is made liquid by the heat inside the Earth's mantle. Rocks that have formed from solidified lava from a volcano are an example of rocks that would be described as igneous. When magma comes out onto the surface of the Earth, it is called lava. b : relating to, resulting from, or suggestive of the intrusion or extrusion of magma or volcanic activity. Each kind of texture has a variety of different characteristics that make them unique. The core of the earth, aka the center of the earth, has a massive raging fire. (of rocks) formed from magma (= very hot liquid rock that has cooled) 2. Definition of igneous. Igneous is a Latin word that means fire. Forms when clasts (Rock or mineral fragments) are cemented together by a mineral Chemical Sedimentary Rock Forms when mineral crystallize out of solution (meaning that minerals dissolved in a liquid are left behind when the liquid evaporates) Igneous rocks are those that form via the process of melting and cooling. Lava cools down to form rocks such as tuff and basalt. When magma erupts and cools down to form hard objects, they are called igneous rocks. (of rocks) formed from…. Igneous rock is formed from magma. Igneous Rock Definition. Igneous rock is one of the three main rock types, the others being sedimentary and metamorphic rock. Intrusive rocks are made when the magma slowly cools to form … The definition of igneous is something produced by volcanic action or intense fire. Let us explore what leads to such formation. The rocks are formed when lava or magma cools, hardens, and forms new rocks. igneous meaning: 1. produced under conditions involving intense heat, as rocks of volcanic origin or rocks crystallized from molten magma. Learn more. 2 : of, relating to, or … If they erupt from volcanoes onto the surface as lava, they are called extrusive rocks. Geology. Meanings for igneous rock rock formed by the solidification of molten magma It is a rock made by molten lava which isn’t also called magma There are nine main types of igneous rock textures: Phaneritic, vesicular, aphanitic, porphyritic, poikilitic, glassy, pyroclastic, equigranular, and spinifex. By contrast, Intrusive rocks are formed from magma that cools underground. from a magma or lava. or pronounce in different accent or variation ? 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