Know all about Alkali Feldspar Granite and Pyrolite properties here. All properties of rocks are important as they define the type of rock and its application. Alkali Feldspar Granite and Pyrolite belong to Igneous Rocks.Texture of Alkali Feldspar Granite is Phaneritic whereas that of Pyrolite is Phaneritic. Alkali Feldspar Granite appears Veined or Pebbled and Pyrolite appears Rough and Shiny. The luster of Alkali Feldspar Granite is dull to grainy with sporadic parts pearly and vitreous while that of Pyrolite is shiny. Alkali Feldspar Granite is available in black, grey, orange, pink, white colors whereas Pyrolite is available in dark greenish - grey colors. The commercial uses of Alkali Feldspar Granite are curling, gemstone, laboratory bench tops, tombstones and that of Pyrolite are creating artwork, gemstone, jewelry, source of chromite, platinum, nickel and garnet, source of diamonds.