Know all about Oil shale and Wehrlite 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 Wehrlite belongs to Igneous Rocks.Texture of Oil shale is Splintery whereas that of Wehrlite is Banded. Oil shale appears Muddy and Wehrlite appears Rough and Banded. The luster of Oil shale is dull while that of Wehrlite is metallic. Oil shale is available in black, brown, buff, green, grey, red, yellow colors whereas Wehrlite is available in dark greenish - grey, green colors. The commercial uses of Oil shale are an oil and gas reservoir and that of Wehrlite are cemetery markers, creating artwork, gemstone, jewelry.