There are nine main types of igneous rock textures: Phaneritic, vesicular, aphanitic, porphyritic, poikilitic, glassy, pyroclastic, equigranular, and spinifex. Rocks that have formed from solidified lava from a volcano are an example of rocks that would be described as igneous. 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. Igneous rock is formed from magma. 2 : of, relating to, or … Origin of Igneous Rocks Igneous rocks are those that form via the process of melting and cooling. from a magma or lava. If they erupt from volcanoes onto the surface as lava, they are called extrusive rocks. produced under conditions involving intense heat, as rocks of volcanic origin or rocks crystallized from molten magma. 1 a : formed by solidification of magma igneous rock. The magma may be derived from partial melts of existing rocks in both a planet’s mantle or crust. Igneous rocks are first formed rocks which had made up the primodial earth’s crust. Learn more. Definition of igneous. By contrast, Intrusive rocks are formed from magma that cools underground. When magma comes out onto the surface of the Earth, it is called lava. of, relating to, or characteristic of fire. Igneous Rock Definition. 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 When magma erupts and cools down to form hard objects, they are called igneous rocks. Igneous is a Latin word that means fire. Lava cools down to form rocks such as tuff and basalt. The material is made liquid by the heat inside the Earth's mantle. Geology. (of rocks) formed from…. 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) The definition of igneous is something produced by volcanic action or intense fire. Intrusive rocks are made when the magma slowly cools to form … b : relating to, resulting from, or suggestive of the intrusion or extrusion of magma or volcanic activity. or pronounce in different accent or variation ? igneous meaning: 1. Each kind of texture has a variety of different characteristics that make them unique. Igneous Rocks are formed by cooling or solidification of molten or partly molten material, i.e. Igneous rock is one of the three main rock types, the others being sedimentary and metamorphic rock. Igneous rock is shaped via the cooling and solidification of magma or lava. Let us explore what leads to such formation. For this reason, they are called primary rocks. The rocks are formed when lava or magma cools, hardens, and forms new rocks. Igneous rocks are rocks formed from molten magma.