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