The Collaborative International Dictionary of English v.0.48:
Breccia \Brec"cia\, n. [It., breach, pebble, fragments of stone, fr. F. br[`e]che; of German origin. See Breach.] (Geol.) A rock composed of angular fragments either of the same mineral or of different minerals, etc., united by a cement, and commonly presenting a variety of colors. [1913 Webster] Bone breccia, a breccia containing bones, usually fragmentary. Coin breccia, a breccia containing coins. [1913 Webster]