Know all about Gneiss and Minette properties here. All properties of rocks are important as they define the type of rock and its application. Gneiss belongs to Metamorphic Rocks while Minette belongs to Igneous Rocks.Texture of Gneiss is Banded, Foliated, Platy whereas that of Minette is Porphyritic. Gneiss appears Foliated and Minette appears Dull, Banded and Foilated. The luster of Gneiss is dull while that of Minette is subvitreous to dull. Gneiss is available in black, brown, pink, red, white colors whereas Minette is available in black, bluish - grey, brown, dark greenish - grey, green, grey colors. The commercial uses of Gneiss are cemetery markers, jewelry, tombstones, used in aquariums 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).