Know all about Minette and Coal properties here. All properties of rocks are important as they define the type of rock and its application. Minette belongs to Igneous Rocks while Coal belongs to Sedimentary Rocks.Texture of Minette is Porphyritic whereas that of Coal is Amorphous, Glassy. Minette appears Dull, Banded and Foilated and Coal appears Veined or Pebbled. The luster of Minette is subvitreous to dull while that of Coal is dull to vitreous to submetallic. Minette is available in black, bluish - grey, brown, dark greenish - grey, green, grey colors whereas Coal is available in black, brown, dark brown, grey, light to dark grey 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 Coal are alumina refineries, electricity generation, liquid fuel, manufacture of soap, solvents, dyes, plastics and fibres, paper industry.