Know all about Hyaloclastite and Pegmatite properties here. All properties of rocks are important as they define the type of rock and its application. Hyaloclastite and Pegmatite belong to Igneous Rocks.Texture of Hyaloclastite is Pyroclastic whereas that of Pegmatite is Pegmatitic. Hyaloclastite appears Dull and Pegmatite appears Layered, Banded, Veined and Shiny. The luster of Hyaloclastite is dull and grainy while that of Pegmatite is grainy, pearly and vitreous. Hyaloclastite is available in brown, grey, yellow colors whereas Pegmatite is available in black, brown, cream, green, grey, pink, red, rust, silver, white, yellow colors. The commercial uses of Hyaloclastite are cemetery markers, creating artwork and that of Pegmatite are creating artwork, jewelry, source of corundum, tourmalines, beryls and topaz.