Resulting from, or produced by, the action of great heat; with rocks, it could also mean formed from lava/magma; as, granite and basalt are igneous rocks
Pertaining to, having the nature of fire; containing fire; resembling fire; as, an igneous appearance
produced under conditions involving intense heat; "igneous rock is rock formed by solidification from a molten state; especially from molten magma"; "igneous fusion is fusion by heat alone"; "pyrogenic strata"
1 From a magma; said of a rock or mineral that solidified from molten or partly molten material 2 A rock or mineral that solidified from molten or partly molten material
Any rock solidified from molten or partly molten material BWCA basalt, gabbro, and granite are of igneous origin
adj a word used to describe any type of rock that was once molten, whether as magma (inside the earth or intrusive) or lava (outside the earth or extrusive); one of three major rock types; see also sedimentary and metamorphic
Said of a rock or mineral that solidified from molten or partly molten material, i e from magma; also, applied to processes leading to, related to, or resulting from the formation of such rocks Igneous rocks constitute one of the tree main classes into which rocks are divided, the others being metamorphic and sedimentary
Resulting from, or produced by, the action of fire; as, lavas and basalt are igneous rocks
Pertaining to, having the nature of, fire; containing fire; resembling fire; as, an igneous appearance
Rock formed by cooled and hardened magma within the crust or lava on the surface
One of the three basic categories into which rocks can be classified, of which the other two are sedimentary and metamorphic Igneous rocks are formed by the cooling of molten rock, called magma