- (breccia) a rudaceous rock consisting of sharp fragments embedded in clay or sand
- Breccia (breach) is a rock composed of broken fragments of minerals or rock cemented together by a fine-grained matrix, that may be similar to or different from the composition of the fragments.
- (Breccia) A sedimentary rock containing angular rock fragments which are greater than 2mm across.
- (Breccia) a sedimentary rock made up of large, angular grains which have been cemented together.
- (breccia) A rock consisting of angular fragments in a finer grained matrix which may or may not be similar to the larger fragments; it may be formed from any rock type by fracturing (in a fault), explosion (volcanic), intrusion (intrusion breccia) or sedimentation (scree slope).
- (Breccia) A rock made from mineral fragments cemented together by the heat of meteoroid impact.
- (Breccia) A clastic rock composed of a matrix and angular clasts.
- (BRECCIA) A species of Marble composed of a mass of small pebbles, closely cemented together in such a manner that, when broken, they form brèches, or notches; whence its name.
- (Breccia (volcanic breccia)) Conglomerate-like rock made up of angular pieces of volcanic rock usually bound in volcanic ash.
- (Breccia) A name applied to both granite and conglomerate stone because of the coarse and angular particles present.
- (Breccia) Boulders, glacial rock debris, usually deposited on mountain summits
- (Breccia) Consolidated gravel composed of broken, angular particles.
- (Breccia) Marble or limestone in which angular fragments are imbedded in a matrix of the same of another composition.
- (Breccia) Rock made from pieces of rocks formed earlier.
- (breccia) A rock fragmented into angular components.
- (breccia) The accumulated materials from cave deposits that harden into a conglomerate rock, including sediments, rocks, and animal bones.