Monomict Breccia

Type of breccia whose clasts are composed of a single (mono-) rock type, possibly all from a single rock unit (e.g., L6 with L6). Monomict breccias are rare on the Moon because meteoroid impacts tend to mix different kinds of rocks. The example is a terrestrial granite breccia.


Image Source: http://www.museum.hu-berlin.de/min/zerin/zerin8.jpg