Know all about Pseudotachylite and Oolite properties here. All properties of rocks are important as they define the type of rock and its application. Pseudotachylite belongs to Metamorphic Rocks while Oolite belongs to Sedimentary Rocks.Texture of Pseudotachylite is Quench whereas that of Oolite is Clastic or Non-Clastic. Pseudotachylite appears Dull and Soft and Oolite appears Rounded and Rough. The luster of Pseudotachylite is vitreous while that of Oolite is pearly to shiny. Pseudotachylite is available in black, brown, colourless, green, grey, pink, white colors whereas Oolite is available in black, blue, brown, cream, green, grey, pink, red, silver, white, yellow colors. The commercial uses of Pseudotachylite are creating artwork, gemstone and that of Oolite are creating artwork, jewelry, used in aquariums.