Know all about Trachyte and Tonalite properties here. All properties of rocks are important as they define the type of rock and its application. Trachyte and Tonalite belong to Igneous Rocks.Texture of Trachyte is Aphanitic to Porphyritic whereas that of Tonalite is Phaneritic. Trachyte appears Banded and Tonalite appears Banded and Foilated. The luster of Trachyte is metallic while that of Tonalite is subvitreous to dull. Trachyte and Tonalite are available in black, brown, dark greenish - grey, green, grey, light to dark grey, white colors. The commercial uses of Trachyte and Tonalite are cemetery markers, creating artwork.