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