Know all about Vogesite and Pseudotachylite properties here. All properties of rocks are important as they define the type of rock and its application. Vogesite belongs to Igneous Rocks while Pseudotachylite belongs to Metamorphic Rocks.Texture of Vogesite is Porphyritic whereas that of Pseudotachylite is Quench. Vogesite appears Dull, Banded and Foilated and Pseudotachylite appears Dull and Soft. The luster of Vogesite is subvitreous to dull while that of Pseudotachylite is vitreous. Vogesite is available in black, bluish - grey, brown, dark greenish - grey, green, grey colors whereas Pseudotachylite is available in black, brown, colourless, green, grey, pink, white colors. The commercial uses of Vogesite are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux, production of lime, soil conditioner, source of magnesia (mgo) and that of Pseudotachylite are creating artwork, gemstone.