metamorphic rockSedimentary or igneous rock altered by great heat or pressure, e.g. limestone changed to marble.Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
metamorphic rockSedimentary or igneous rock altered by great heat or pressure, e.g. limestone changed to marble.Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited