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