Know all about Arkose and Oil shale properties here. All properties of rocks are important as they define the type of rock and its application. Arkose and Oil shale belong to Sedimentary Rocks.Texture of Arkose is Clastic whereas that of Oil shale is Splintery. Arkose appears Rough and Dull and Oil shale appears Muddy. The luster of Arkose and Oil shale is dull. Arkose is available in reddish brown colors whereas Oil shale is available in black, brown, buff, green, grey, red, yellow colors. The commercial uses of Arkose are in aquifers, soil conditioner, source of magnesia (mgo), tombstones and that of Oil shale are an oil and gas reservoir.