Know all about Alkali Feldspar Granite and Nephelinite properties here. All properties of rocks are important as they define the type of rock and its application. Alkali Feldspar Granite and Nephelinite belong to Igneous Rocks.Texture of Alkali Feldspar Granite is Phaneritic whereas that of Nephelinite is Aphanitic. Alkali Feldspar Granite appears Veined or Pebbled and Nephelinite appears Skeletal. The luster of Alkali Feldspar Granite is dull to grainy with sporadic parts pearly and vitreous while that of Nephelinite is vitreous to metallic. Alkali Feldspar Granite is available in black, grey, orange, pink, white colors whereas Nephelinite is available in black, brown, colourless, green, grey, white colors. The commercial uses of Alkali Feldspar Granite are curling, gemstone, laboratory bench tops, tombstones and that of Nephelinite are creating artwork, soil conditioner, source of magnesia (mgo).