Know all about Skarn and Pseudotachylite properties here. All properties of rocks are important as they define the type of rock and its application. Skarn and Pseudotachylite belong to Metamorphic Rocks.Texture of Skarn is Earthy, Mud-rich, Rough whereas that of Pseudotachylite is Quench. Skarn appears Dull and Pseudotachylite appears Dull and Soft. The luster of Skarn is waxy and dull while that of Pseudotachylite is vitreous. Skarn is available in black, brown, colourless, green, grey, white colors whereas Pseudotachylite is available in black, brown, colourless, green, grey, pink, white colors. The commercial uses of Skarn and Pseudotachylite are creating artwork, gemstone, jewelry, metallurgical flux, source of magnesia (mgo).