X1021566573-00106-27064</DOCNO> IGNEOUS ROCKS IGNEOUS ROCKS Rocks - Aggregates of minerals Igneous Rocks - Rocks formed by crystallization from a melt (magma) Extrusive ( volcanic ) - produced when magma flows on the earth's surface Intrusive ( plutonic ) - produced when magma solidifies at depth beneath the earth.
(Igneous Rocks - Rocks; formed; by crystallization from a melt) (magma; flows; on the earth's surface)
Igneous Rocks - Rocks magma
formed flows
by crystallization from a melt
on the earth's surface