Igneous rock is one of the three main rock types based on the method of its formation. It is also referred to as plutonic or volcanic rock depending on where it formed. In a nutshell, to be classified as igneous, a rock must have crystallized and solidified from molten rock (magma) either below ground (intrusive igneous rock) or at or near the surface (extrusive igneous rock).
not applicable or pertinent
g oogle it
75
There is no defintition, because it's not a word.
Obsidian is an igneous rock.
Sedimentary rock can be made up partially of igneous clasts, but igneous rock is igneous rock.
Cooling and solidifying magma turns into igneous rock.
Igneous rocks are formed by the solidification of molten materials.
yes, rhyolite is igneous
Igneous
igneous
The suffix of "igneous" is "-eous".