Know all about Chert and Borolanite properties here. All properties of rocks are important as they define the type of rock and its application. Chert belongs to Sedimentary Rocks while Borolanite belongs to Igneous Rocks.Texture of Chert is Banded, Rough whereas that of Borolanite is Granular. Chert appears Glassy or Pearly and Borolanite appears Banded and Foilated. The luster of Chert is waxy and dull while that of Borolanite is greasy to dull. Chert is available in black, brown, green, grey, red, white colors whereas Borolanite is available in brown, buff, cream, green, grey, 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 Borolanite are cemetery markers.