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