Know all about Skarn and Diatomite properties here. All properties of rocks are important as they define the type of rock and its application. Skarn belongs to Metamorphic Rocks while Diatomite belongs to Sedimentary Rocks.Texture of Skarn is Earthy, Mud-rich, Rough whereas that of Diatomite is Clastic or Non-Clastic. Skarn appears Dull and Diatomite appears Soft. The luster of Skarn is waxy and dull while that of Diatomite is dull. Skarn is available in black, brown, colourless, green, grey, white colors whereas Diatomite is available in grey, white, yellow colors. The commercial uses of Skarn are creating artwork, gemstone, jewelry, metallurgical flux, source of magnesia (mgo) and that 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.