Know all about Scoria and Diatomite properties here. All properties of rocks are important as they define the type of rock and its application. Scoria belongs to Igneous Rocks while Diatomite belongs to Sedimentary Rocks.Texture of Scoria is Vesicular whereas that of Diatomite is Clastic or Non-Clastic. Scoria appears Glassy and Vesicular and Diatomite appears Soft. The luster of Scoria is subvitreous to dull while that of Diatomite is dull. Scoria is available in black, brown, dark grey to black, red colors whereas Diatomite is available in grey, white, yellow colors. The commercial uses of Scoria are as a traction material on snow-covered roads, creating artwork, high-temperature insulation, in gas barbecue grills 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.