Know all about Tonalite and Troctolite properties here. All properties of rocks are important as they define the type of rock and its application. Tonalite and Troctolite belong to Igneous Rocks.Texture of Tonalite is Phaneritic whereas that of Troctolite is Phaneritic. Tonalite appears Banded and Foilated and Troctolite appears Veined and Shiny. The luster of Tonalite is subvitreous to dull while that of Troctolite is not available. Tonalite is available in black, brown, light to dark grey, white colors whereas Troctolite is available in dark grey to black colors. The commercial uses of Tonalite are cemetery markers, creating artwork and that of Troctolite are cemetery markers, commemorative tablets, laboratory bench tops, jewelry, sea defence, tombstones.