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