Know all about Tuff and Rhyodacite properties here. All properties of rocks are important as they define the type of rock and its application. Tuff and Rhyodacite belong to Igneous Rocks.Texture of Tuff is Clastic, Pyroclastic whereas that of Rhyodacite is Earthy. Tuff appears Dull, Vesicular and Foilated and Rhyodacite appears Skeletal. The luster of Tuff is vitreous to dull while that of Rhyodacite is greasy to dull. Tuff is available in brown, grey, yellow colors whereas Rhyodacite is available in black to grey, dark greenish - grey colors. The commercial uses of Tuff are creating artwork and that of Rhyodacite are cemetery markers, creating artwork.