Know all about Minette and Porphyry properties here. All properties of rocks are important as they define the type of rock and its application. Minette and Porphyry belong to Igneous Rocks.Texture of Minette is Porphyritic whereas that of Porphyry is Porphyritic. Minette appears Dull, Banded and Foilated and Porphyry appears Dull. The luster of Minette is subvitreous to dull while that of Porphyry is dull. Minette is available in black, bluish - grey, brown, dark greenish - grey, green, grey colors whereas Porphyry is available in black, brown, colourless, green, grey, red, rust, white 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 Porphyry are creating artwork, gemstone, jewelry.