Know all about Dunite and Tonalite properties here. All properties of rocks are important as they define the type of rock and its application. Dunite and Tonalite belong to Igneous Rocks.Texture of Dunite is Phaneritic whereas that of Tonalite is Phaneritic. Dunite appears Rough and Shiny and Tonalite appears Banded and Foilated. The luster of Dunite is shiny while that of Tonalite is subvitreous to dull. Dunite is available in dark greenish - grey colors whereas Tonalite is available in black, brown, light to dark grey, white colors. The commercial uses of Dunite are creating artwork, gemstone, jewelry, source of chromite, platinum, nickel and garnet, source of diamonds and that of Tonalite are cemetery markers, creating artwork.