Know all about Suevite and Tuff properties here. All properties of rocks are important as they define the type of rock and its application. Suevite belongs to Metamorphic Rocks while Tuff belongs to Igneous Rocks.Texture of Suevite is Earthy whereas that of Tuff is Clastic, Pyroclastic. Suevite appears Banded and Tuff appears Dull, Vesicular and Foilated. The luster of Suevite is earthy while that of Tuff is vitreous to dull. Suevite is available in black, brown, colourless, green, grey, pink colors whereas Tuff is available in brown, grey, yellow colors. The commercial uses of Suevite are as a feed additive for livestock, gemstone, metallurgical flux, source of magnesia (mgo) and that of Tuff are creating artwork.