Know all about Oil shale and Tuff properties here. All properties of rocks are important as they define the type of rock and its application. Oil shale belongs to Sedimentary Rocks while Tuff belongs to Igneous Rocks.Texture of Oil shale is Splintery whereas that of Tuff is Clastic, Pyroclastic. Oil shale appears Muddy and Tuff appears Dull, Vesicular and Foilated. The luster of Oil shale is dull while that of Tuff is vitreous to dull. Oil shale and Tuff are available in black, brown, buff, green, grey, red, yellow colors. The commercial uses of Oil shale are an oil and gas reservoir and that of Tuff are creating artwork.