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