Know all about Oil shale and Appinite 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 Appinite belongs to Igneous Rocks.Texture of Oil shale is Splintery whereas that of Appinite is Porphyritic. Oil shale appears Muddy and Appinite appears Dull, Banded and Foilated. The luster of Oil shale is dull while that of Appinite is subvitreous to dull. Oil shale is available in black, brown, buff, green, grey, red, yellow colors whereas Appinite is available in black, bluish - grey, brown, dark greenish - grey, green, grey colors. The commercial uses of Oil shale are an oil and gas reservoir and that of Appinite are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux, production of lime, soil conditioner.