Know all about Hyaloclastite and Flint properties here. All properties of rocks are important as they define the type of rock and its application. Hyaloclastite belongs to Igneous Rocks while Flint belongs to Sedimentary Rocks.Texture of Hyaloclastite is Pyroclastic whereas that of Flint is Banded, Rough. Hyaloclastite appears Dull and Flint appears Glassy or Pearly. The luster of Hyaloclastite is dull and grainy while that of Flint is vitreous. Hyaloclastite is available in brown, grey, yellow colors whereas Flint is available in black, brown, green, grey, red, white colors. The commercial uses of Hyaloclastite are cemetery markers, 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.