Know all about Coquina and Flint properties here. All properties of rocks are important as they define the type of rock and its application. Coquina and Flint belong to Sedimentary Rocks.Texture of Coquina is Clastic whereas that of Flint is Banded, Rough. Coquina appears Layered, Banded, Veined and Shiny and Flint appears Glassy or Pearly. The luster of Coquina is dull to vitreous to submetallic while that of Flint is vitreous. Coquina is available in beige, buff, orange colors whereas Flint is available in black, brown, green, grey, red, white colors. The commercial uses of Coquina are creating artwork and that of Flint are creating artwork, gemstone, in fire-starting tools, manufacture of tools, metallurgical flux, jewelry, to ignite fire, used in flintlock firearms.