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