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