Know all about Diatomite and Metapelite properties here. All properties of rocks are important as they define the type of rock and its application. Diatomite belongs to Sedimentary Rocks while Metapelite belongs to Metamorphic Rocks.Texture of Diatomite is Clastic or Non-Clastic whereas that of Metapelite is Foliated. Diatomite appears Soft and Metapelite appears Banded. The luster of Diatomite is dull while that of Metapelite is earthy. Diatomite is available in grey, white, yellow colors whereas Metapelite is available in dark greenish - grey, green, light green, light greenish grey 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 Metapelite are commemorative tablets, creating artwork.