Know all about Breccia and Oil shale properties here. All properties of rocks are important as they define the type of rock and its application. Breccia and Oil shale belong to Sedimentary Rocks.Texture of Breccia is Brecciated, Clastic whereas that of Oil shale is Splintery. Breccia appears Layered, Banded, Veined and Shiny and Oil shale appears Muddy. The luster of Breccia is dull to pearly while that of Oil shale is dull. Breccia and Oil shale 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 Oil shale are an oil and gas reservoir.