Know all about Diatomite and Marl properties here. All properties of rocks are important as they define the type of rock and its application. Diatomite and Marl belong to Sedimentary Rocks.Texture of Diatomite is Clastic or Non-Clastic whereas that of Marl is Earthy. Diatomite appears Soft and Marl appears Rough and Dull. The luster of Diatomite and Marl is dull. Diatomite is available in grey, white, yellow colors whereas Marl is available in beige, brown, green, grey, white colors. The commercial uses of Diatomite and Marl 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.