Know all about Alkali Feldspar Granite and Variolite properties here. All properties of rocks are important as they define the type of rock and its application. Alkali Feldspar Granite and Variolite belong to Igneous Rocks.Texture of Alkali Feldspar Granite is Phaneritic whereas that of Variolite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular. Alkali Feldspar Granite appears Veined or Pebbled and Variolite appears Dull and Soft. The luster of Alkali Feldspar Granite is dull to grainy with sporadic parts pearly and vitreous while that of Variolite is not available. Alkali Feldspar Granite is available in black, grey, orange, pink, white colors whereas Variolite is available in black, brown, light to dark grey colors. The commercial uses of Alkali Feldspar Granite are curling, gemstone, laboratory bench tops, tombstones and that of Variolite are cemetery markers, creating artwork.