Know all about Hyaloclastite and Pyrolite properties here. All properties of rocks are important as they define the type of rock and its application. Hyaloclastite and Pyrolite belong to Igneous Rocks.Texture of Hyaloclastite is Pyroclastic whereas that of Pyrolite is Phaneritic. Hyaloclastite appears Dull and Pyrolite appears Rough and Shiny. The luster of Hyaloclastite is dull and grainy while that of Pyrolite is shiny. Hyaloclastite is available in brown, grey, yellow colors whereas Pyrolite is available in dark greenish - grey colors. The commercial uses of Hyaloclastite are cemetery markers, creating artwork and that of Pyrolite are creating artwork, gemstone, jewelry, source of chromite, platinum, nickel and garnet, source of diamonds.