Know all about Breccia and Gneiss properties here. All properties of rocks are important as they define the type of rock and its application. Breccia belongs to Sedimentary Rocks while Gneiss belongs to Metamorphic Rocks.Texture of Breccia is Brecciated, Clastic whereas that of Gneiss is Banded, Foliated, Platy. Breccia appears Layered, Banded, Veined and Shiny and Gneiss appears Foliated. The luster of Breccia is dull to pearly while that of Gneiss is dull. Breccia and Gneiss are available in beige, black, blue, brown, buff, green, grey, orange, pink, purple, red, rust, white, yellow colors. The commercial uses of Breccia are creating artwork, gemstone, jewelry and that of Gneiss are cemetery markers, jewelry, tombstones, used in aquariums.