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