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