Know all about Essexite and Chert properties here. All properties of rocks are important as they define the type of rock and its application. Essexite belongs to Igneous Rocks while Chert belongs to Sedimentary Rocks.Texture of Essexite is Granular whereas that of Chert is Banded, Rough. Essexite appears Banded and Chert appears Glassy or Pearly. The luster of Essexite is not available while that of Chert is waxy and dull. Essexite is available in dark grey to black colors whereas Chert is available in black, brown, green, grey, red, white colors. The commercial uses of Essexite are cemetery markers, commemorative tablets, jewelry, sea defence, tombstones and that of Chert are creating artwork, gemstone, in fire-starting tools, jewelry, to ignite fire, used in flintlock firearms.