| Breccia (n.) 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. Thesaurus Entries aa, abyssal rock, agglomerate, agglomeration, basalt, bedrock, block lava, brash, bunch, clot, cluster, concrete, concretion, conglomerate, conglomeration, crag, debris, detritus, druid stone, festooned pahoehoe, gneiss, grain, granite, granule, granulet, gravel, grit, igneous rock, lava, limestone, living rock, magma, mantlerock, mass, metamorphic rock, monolith, pahoehoe, pillow lava, porphyry, pudding stone, regolith, rock, ropy lava, rubble, rubblestone, sand, sandstone, sarsen, schist, scoria, scree, sedimentary rock, shelly pahoehoe, shingle, stone, talus, tufa, tuff |