Know all about Oil shale and Websterite 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 Websterite belongs to Igneous Rocks.Texture of Oil shale is Splintery whereas that of Websterite is Clastic, Granular, Phaneritic, Porphyritic. Oil shale appears Muddy and Websterite appears Layered, Banded, Veined and Shiny. The luster of Oil shale is dull while that of Websterite is dull to vitreous to submetallic. Oil shale is available in black, brown, buff, green, grey, red, yellow colors whereas Websterite is available in black to grey, bluish - grey, dark greenish - grey, green, light greenish grey colors. The commercial uses of Oil shale are an oil and gas reservoir and that of Websterite are cemetery markers, commemorative tablets, creating artwork, laboratory bench tops, jewelry, sea defence, tombstones.