Know all about Minette and Chert properties here. All properties of rocks are important as they define the type of rock and its application. Minette belongs to Igneous Rocks while Chert belongs to Sedimentary Rocks.Texture of Minette is Porphyritic whereas that of Chert is Banded, Rough. Minette appears Dull, Banded and Foilated and Chert appears Glassy or Pearly. The luster of Minette is subvitreous to dull while that of Chert is waxy and dull. Minette is available in black, bluish - grey, brown, dark greenish - grey, green, grey colors whereas Chert is available in black, brown, green, grey, red, 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 Chert are creating artwork, gemstone, in fire-starting tools, jewelry, to ignite fire, used in flintlock firearms.