Know all about Ijolite and Tachylite properties here. All properties of rocks are important as they define the type of rock and its application. Ijolite and Tachylite belong to Igneous Rocks.Texture of Ijolite is Earthy, Granular whereas that of Tachylite is Vitreous. Ijolite appears Banded and Foilated and Tachylite appears Glassy. The luster of Ijolite is greasy to dull while that of Tachylite is resinous. Ijolite is available in brown, buff, cream, green, grey, pink, white colors whereas Tachylite is available in black, dark brown colors. The commercial uses of Ijolite and Tachylite are cemetery markers, creating artwork.