Know all about Diatomite and Diabase properties here. All properties of rocks are important as they define the type of rock and its application. Diatomite belongs to Sedimentary Rocks while Diabase belongs to Igneous Rocks.Texture of Diatomite is Clastic or Non-Clastic whereas that of Diabase is Aphanitic, Granular. Diatomite appears Soft and Diabase appears Vesicular. The luster of Diatomite is dull while that of Diabase is not available. Diatomite is available in grey, white, yellow colors whereas Diabase is available in dark grey to black 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 Diabase are an oil and gas reservoir, cemetery markers, commemorative tablets, laboratory bench tops, jewelry, sea defence, tombstones.