Know all about Flint and Variolite properties here. All properties of rocks are important as they define the type of rock and its application. Flint belongs to Sedimentary Rocks while Variolite belongs to Igneous Rocks.Texture of Flint is Banded, Rough whereas that of Variolite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular. Flint appears Glassy or Pearly and Variolite appears Dull and Soft. The luster of Flint is vitreous while that of Variolite is not available. Flint is available in black, brown, green, grey, red, white colors whereas Variolite is available in black, brown, light to dark grey 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 Variolite are cemetery markers, creating artwork.