Know all about Diatomite and Alkali Feldspar Granite properties here. All properties of rocks are important as they define the type of rock and its application. Diatomite belongs to Sedimentary Rocks while Alkali Feldspar Granite belongs to Igneous Rocks.Texture of Diatomite is Clastic or Non-Clastic whereas that of Alkali Feldspar Granite is Phaneritic. Diatomite appears Soft and Alkali Feldspar Granite appears Veined or Pebbled. The luster of Diatomite is dull while that of Alkali Feldspar Granite is dull to grainy with sporadic parts pearly and vitreous. Diatomite is available in grey, white, yellow colors whereas Alkali Feldspar Granite is available in black, grey, orange, 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 Alkali Feldspar Granite are curling, gemstone, laboratory bench tops, tombstones.