Know all about Flint and Phonolite properties here. All properties of rocks are important as they define the type of rock and its application. Flint belongs to Sedimentary Rocks while Phonolite belongs to Igneous Rocks.Texture of Flint is Banded, Rough whereas that of Phonolite is Granular. Flint appears Glassy or Pearly and Phonolite appears Banded and Foilated. The luster of Flint is vitreous while that of Phonolite is greasy to dull. Flint is available in black, brown, green, grey, red, white colors whereas Phonolite is available in brown, buff, cream, green, grey, pink, white colors. The commercial uses of Flint are creating artwork, gemstone, in fire-starting tools, manufacture of tools, metallurgical flux, jewelry, to ignite fire, used in flintlock firearms and that of Phonolite are cemetery markers, creating artwork.