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