Rock composed of sharp-angled fragments embedded in a fine-grained matrix.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "breccia" in a sentence
"It may also be called a breccia, for it is composed of black fragments, larger or smaller, derived from other rocks, whose angular shape indicates that they have not travelled far from the spots where they occur."
"A breccia is a rock made up of angular pebbles or fragments of other rocks."
"Many beds of siliceous gravel are cemented together by a siliceous cement, and are called breccia; as the plumb-pudding stones of"