Know all about Chert and Alkali Feldspar Granite properties here. All properties of rocks are important as they define the type of rock and its application. Chert belongs to Sedimentary Rocks while Alkali Feldspar Granite belongs to Igneous Rocks.Texture of Chert is Banded, Rough whereas that of Alkali Feldspar Granite is Phaneritic. Chert appears Glassy or Pearly and Alkali Feldspar Granite appears Veined or Pebbled. The luster of Chert is waxy and dull while that of Alkali Feldspar Granite is dull to grainy with sporadic parts pearly and vitreous. Chert is available in black, brown, green, grey, red, white colors whereas Alkali Feldspar Granite is available in black, grey, orange, pink, white colors. The commercial uses of Chert are creating artwork, gemstone, in fire-starting tools, jewelry, to ignite fire, used in flintlock firearms and that of Alkali Feldspar Granite are curling, gemstone, laboratory bench tops, tombstones.