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