Know all about Andesite and Chert properties here. All properties of rocks are important as they define the type of rock and its application. Andesite belongs to Igneous Rocks while Chert belongs to Sedimentary Rocks.Texture of Andesite is Aphanitic to Porphyritic whereas that of Chert is Banded, Rough. Andesite appears Dull and Soft and Chert appears Glassy or Pearly. The luster of Andesite is vitreous while that of Chert is waxy and dull. Andesite is available in bluish - grey, grey, pink, yellow colors whereas Chert is available in black, brown, green, grey, red, white colors. The commercial uses of Andesite are commemorative tablets, creating artwork and that of Chert are creating artwork, gemstone, in fire-starting tools, jewelry, to ignite fire, used in flintlock firearms.