Properties of Oil shale and Websterite play an important role in determining the type of rock. Along with Oil shale vs Websterite properties, get to know more about Oil shale Definition and Websterite Definition. For the ease of understanding, the properties of rocks are divided into physical and thermal properties. Rocks have a variety of properties like hardness, color, specific gravity, fracture, cleavage, luster etc. Know all about physical and thermal properties of Oil shale and Websterite.