Know all about Diatomite and Anorthosite properties here. All properties of rocks are important as they define the type of rock and its application. Diatomite belongs to Sedimentary Rocks while Anorthosite belongs to Igneous Rocks.Texture of Diatomite is Clastic or Non-Clastic whereas that of Anorthosite is Foliated, Glassy. Diatomite appears Soft and Anorthosite appears Layered, Banded, Veined and Shiny. The luster of Diatomite is dull while that of Anorthosite is pearly to subvitreous. Diatomite is available in grey, white, yellow colors whereas Anorthosite is available in black, bluish - grey, brown, green, grey, light greenish grey, pink, white 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 Anorthosite are creating artwork, curling.