Know all about Diatomite and Skarn properties here. All properties of rocks are important as they define the type of rock and its application. Diatomite belongs to Sedimentary Rocks while Skarn belongs to Metamorphic Rocks.Texture of Diatomite is Clastic or Non-Clastic whereas that of Skarn is Earthy, Mud-rich, Rough. Diatomite appears Soft and Skarn appears Dull. The luster of Diatomite is dull while that of Skarn is waxy and dull. Diatomite is available in grey, white, yellow colors whereas Skarn is available in black, brown, colourless, green, grey, white colors. The commercial uses of Diatomite are alumina refineries, animal feed filler, as a feed additive for livestock, creating artwork, drawing on blackboards, fire resistant, gymnasts, athletes and mountain climbers use for grip, in aquifers, soil conditioner, to ignite fire, used as a filter medium, used as an insecticide, whiting material in toothpaste, paint and paper and that of Skarn are creating artwork, gemstone, jewelry, metallurgical flux, source of magnesia (mgo).