Know all about Pseudotachylite and Variolite properties here. All properties of rocks are important as they define the type of rock and its application. Pseudotachylite belongs to Metamorphic Rocks while Variolite belongs to Igneous Rocks.Texture of Pseudotachylite is Quench whereas that of Variolite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular. Pseudotachylite appears Dull and Soft and Variolite appears Dull and Soft. The luster of Pseudotachylite is vitreous while that of Variolite is not available. Pseudotachylite is available in black, brown, colourless, green, grey, pink, white colors whereas Variolite is available in black, brown, light to dark grey colors. The commercial uses of Pseudotachylite are creating artwork, gemstone and that of Variolite are cemetery markers, creating artwork.