Fault Breccia: Broken rock found in the contact area between two fault blocks and produced by movement of the fault. Flow Breccia: A lava texture produced when the crust of a lava flow is broken and jumbled during movement. Igneous Breccia: A term used for a rock composed angular fragments of igneous rocks.Flow breccia and pyroclastic breccia could be called igneous breccia. Impact Breccia: A deposit of angular rock debris produced by the impact of an asteroid or other cosmic body. See an article about impactites.ost breccias are a mix of rock fragments and mineral grains. The type of rock that the fragments were produced from is often used as an adjective when referring to the rock. Some examples: sandstone breccia, limestone breccia, granite breccia, chert breccia, basalt breccia and others.