Know all about Chert and Diatomite properties here. All properties of rocks are important as they define the type of rock and its application. Chert and Diatomite belong to Sedimentary Rocks.Texture of Chert is Banded, Rough whereas that of Diatomite is Clastic or Non-Clastic. Chert appears Glassy or Pearly and Diatomite appears Soft. The luster of Chert is waxy and dull while that of Diatomite is dull. Chert is available in black, brown, green, grey, red, white colors whereas Diatomite is available in grey, white, yellow colors. The commercial uses of Chert are creating artwork, gemstone, in fire-starting tools, jewelry, to ignite fire, used in flintlock firearms 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.