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