Know all about Alkali Feldspar Granite and Tuff properties here. All properties of rocks are important as they define the type of rock and its application. Alkali Feldspar Granite and Tuff belong to Igneous Rocks.Texture of Alkali Feldspar Granite is Phaneritic whereas that of Tuff is Clastic, Pyroclastic. Alkali Feldspar Granite appears Veined or Pebbled and Tuff appears Dull, Vesicular and Foilated. The luster of Alkali Feldspar Granite is dull to grainy with sporadic parts pearly and vitreous while that of Tuff is vitreous to dull. Alkali Feldspar Granite is available in black, grey, orange, pink, white colors whereas Tuff is available in brown, grey, yellow colors. The commercial uses of Alkali Feldspar Granite are curling, gemstone, laboratory bench tops, tombstones and that of Tuff are creating artwork.