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