Know all about Minette and Tuff properties here. All properties of rocks are important as they define the type of rock and its application. Minette and Tuff belong to Igneous Rocks.Texture of Minette is Porphyritic whereas that of Tuff is Clastic, Pyroclastic. Minette appears Dull, Banded and Foilated and Tuff appears Dull, Vesicular and Foilated. The luster of Minette is subvitreous to dull while that of Tuff is vitreous to dull. Minette is available in black, bluish - grey, brown, dark greenish - grey, green, grey colors whereas Tuff is available in brown, grey, yellow colors. The commercial uses of Minette are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux, production of lime, soil conditioner, source of magnesia (mgo) and that of Tuff are creating artwork.