Know all about Breccia and Siltstone properties here. All properties of rocks are important as they define the type of rock and its application. Breccia and Siltstone belong to Sedimentary Rocks.Texture of Breccia is Brecciated, Clastic whereas that of Siltstone is Clastic. Breccia appears Layered, Banded, Veined and Shiny and Siltstone appears Rough. The luster of Breccia is dull to pearly while that of Siltstone is dull. Breccia is available in beige, black, blue, brown, buff, green, grey, orange, pink, purple, red, rust, white, yellow colors whereas Siltstone is available in brown, red, reddish brown colors. The commercial uses of Breccia are creating artwork, gemstone, jewelry and that of Siltstone are raw material for the manufacture of mortar, soil conditioner.