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