Know all about Chert and Troctolite properties here. All properties of rocks are important as they define the type of rock and its application. Chert belongs to Sedimentary Rocks while Troctolite belongs to Igneous Rocks.Texture of Chert is Banded, Rough whereas that of Troctolite is Phaneritic. Chert appears Glassy or Pearly and Troctolite appears Veined and Shiny. The luster of Chert is waxy and dull while that of Troctolite is not available. Chert is available in black, brown, green, grey, red, white colors whereas Troctolite is available in dark grey to black 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 Troctolite are cemetery markers, commemorative tablets, laboratory bench tops, jewelry, sea defence, tombstones.