Know all about Mudstone and Oil shale properties here. All properties of rocks are important as they define the type of rock and its application. Mudstone and Oil shale belong to Sedimentary Rocks.Texture of Mudstone is Clastic whereas that of Oil shale is Splintery. Mudstone appears Rough and Dull and Oil shale appears Muddy. The luster of Mudstone and Oil shale is dull. Mudstone is available in black, blue, brown, green, grey, orange, red, white, yellow colors whereas Oil shale is available in black, brown, buff, green, grey, red, yellow colors. The commercial uses of Mudstone are creating artwork, pottery and that of Oil shale are an oil and gas reservoir.