breccia n : a rudaceous rock consisting of sharp fragments embedded in clay or sand

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. Bone breccia, a breccia containing bones, usually fragmentary. Coin breccia, a breccia containing coins.

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Breccia (pronounced /ˈbrɛtʃiə/ or /ˈbrɛʃiə/, Italian: breach) is a rock composed of broken fragments of minerals or rock cemented together by a fine-grained matrix, that can be either similar to or different from the composition of the fragments.

The word is a loan from Italian, and in that language indicates either loose gravel or stone made by cemented gravel. A breccia may have a variety of different origins, as indicated by the named types including sedimentary breccia, tectonic breccia, igneous breccia, impact breccia and hydrothermal breccia.

Sedimentary breccias are a type of clastic sedimentary rock which are composed of angular to subangular, randomly oriented clasts of other sedimentary rocks. They are formed by either submarine debris flows, avalanches, mud flow or mass flow in an aqueous medium. Technically, turbidites are a form of debris flow deposit and are a fine-grained peripheral deposit to a sedimentary breccia flow.

• Boxxer to commence diamond drilling program on East Breccia copper-molybdenum project - CNW Group
  CALGARY, May 7, 2012 /CNW/ - Boxxer Gold Corp. (TSXV: BXX) (OTC Other: BXXRF) ("Boxxer" or the "Corporation") is pleased to announce that it has received an exploration permit from the Batchawana First Nation and that it plans to commence a minimum 2,000m ... Read more on this news related to 'Breccia'
• Zenyatta Ventures; 450 Metre Step-Out Drill-Holes Intersect Wide Zones of Graphite Breccia - msnbc.com
  THUNDER BAY, ONTARIO — Zenyatta Ventures Ltd. ("Zenyatta" or "Company") (TSX VENTURE:ZEN) is pleased to provide the following update on the current drilling campaign on the Albany Graphite Deposit. Drill hole #5 (Z12-4F5) was collared 450 ... Read more on this news related to 'Breccia'
• Oro Verde intercepts 79 meters of copper iron oxide breccia at Chuminga - SteelGuru
  Oro Verde is continuing to intercept broad zones of copper, iron oxide breccia in drilling at the Chuminga Project in Chile with the third diamond drill hole returning 79.3 meters of mineralization. A visual grade of about 1% copper has been identified in ... Read more on this news related to 'Breccia'