Know all about Trachyandesite and Diorite properties here. All properties of rocks are important as they define the type of rock and its application. Trachyandesite and Diorite belong to Igneous Rocks.Texture of Trachyandesite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular whereas that of Diorite is Phaneritic. Trachyandesite appears Dull and Soft and Diorite appears Shiny. The luster of Trachyandesite is earthy while that of Diorite is shiny. Trachyandesite is available in black, brown, light to dark grey colors whereas Diorite is available in black, brown, light to dark grey, white colors. The commercial uses of Trachyandesite are creating artwork, pottery and that of Diorite are creating artwork, curling.