Know all about Oil shale and Felsite 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 Felsite belongs to Igneous Rocks.Texture of Oil shale is Splintery whereas that of Felsite is Arborescent Patterned, Vitreous. Oil shale appears Muddy and Felsite appears Layered, Banded, Veined and Shiny. The luster of Oil shale is dull while that of Felsite is vitreous. Oil shale is available in black, brown, buff, green, grey, red, yellow colors whereas Felsite is available in black, blue, brown, green, orange, red, tan, yellow colors. The commercial uses of Oil shale are an oil and gas reservoir and that of Felsite are mirror, jewelry.