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