Know all about Chert and Basaltic Trachyandesite properties here. All properties of rocks are important as they define the type of rock and its application. Chert belongs to Sedimentary Rocks while Basaltic Trachyandesite belongs to Igneous Rocks.Texture of Chert is Banded, Rough whereas that of Basaltic Trachyandesite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular. Chert appears Glassy or Pearly and Basaltic Trachyandesite appears Dull and Soft. The luster of Chert is waxy and dull while that of Basaltic Trachyandesite is not available. Chert is available in black, brown, green, grey, red, white colors whereas Basaltic Trachyandesite is available in black, brown, light to dark grey 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 Basaltic Trachyandesite are an oil and gas reservoir, commemorative tablets, creating artwork.