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