Know all about Diorite and Pseudotachylite properties here. All properties of rocks are important as they define the type of rock and its application. Diorite belongs to Igneous Rocks while Pseudotachylite belongs to Metamorphic Rocks.Texture of Diorite is Phaneritic whereas that of Pseudotachylite is Quench. Diorite appears Shiny and Pseudotachylite appears Dull and Soft. The luster of Diorite is shiny while that of Pseudotachylite is vitreous. Diorite 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 Diorite are creating artwork, curling and that of Pseudotachylite are creating artwork, gemstone.