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