Know all about Appinite and Lignite properties here. All properties of rocks are important as they define the type of rock and its application. Appinite belongs to Igneous Rocks while Lignite belongs to Sedimentary Rocks.Texture of Appinite is Porphyritic whereas that of Lignite is Amorphous, Glassy. Appinite appears Dull, Banded and Foilated and Lignite appears Veined or Pebbled. The luster of Appinite is subvitreous to dull while that of Lignite is dull to vitreous to submetallic. Appinite is available in black, bluish - grey, brown, dark greenish - grey, green, grey colors whereas Lignite is available in black, brown, dark brown, grey, light to dark grey colors. The commercial uses of Appinite are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux, production of lime, soil conditioner and that of Lignite are electricity generation.