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