Know all about Hyaloclastite and Theralite properties here. All properties of rocks are important as they define the type of rock and its application. Hyaloclastite and Theralite belong to Igneous Rocks.Texture of Hyaloclastite is Pyroclastic whereas that of Theralite is Phaneritic. Hyaloclastite appears Dull and Theralite appears Veined and Shiny. The luster of Hyaloclastite is dull and grainy while that of Theralite is waxy and dull. Hyaloclastite is available in brown, grey, yellow colors whereas Theralite is available in dark grey to black colors. The commercial uses of Hyaloclastite are cemetery markers, creating artwork and that of Theralite are cemetery markers, commemorative tablets, creating artwork, laboratory bench tops, jewelry, sea defence, tombstones.