Breccia (/ˈbrɛtʃiə, ˈbrɛʃ-/) is a rock composed of large angular broken fragments of minerals or rocks cemented together by a fine-grained matrix.
It took a lot of courage for him to befriend me in front of Hitler… You can melt down all the medals and cups I have and they wouldn’t be a plating on the 24-karat friendship I felt for Lutz Long at that moment. Jesse Owens about Lutz Long
Like conglomerate, breccia contains at least 30 percent of gravel-sized particles (particles over 2mm in size), but it is distinguished from conglomerate because the rock fragments have sharp edges that have not been worn down.