Know all about Lignite and Novaculite properties here. All properties of rocks are important as they define the type of rock and its application. Lignite and Novaculite belong to Sedimentary Rocks.Texture of Lignite is Amorphous, Glassy whereas that of Novaculite is Banded, Glassy, Rough, Vitreous. Lignite appears Veined or Pebbled and Novaculite appears Glassy or Pearly. The luster of Lignite is dull to vitreous to submetallic while that of Novaculite is waxy and dull. Lignite is available in black, brown, dark brown, grey, light to dark grey colors whereas Novaculite is available in black, brown, green, grey, red, white colors. The commercial uses of Lignite are electricity generation and that of Novaculite are cemetery markers, gemstone, in aquifers, in fire-starting tools, jewelry, manufacture of tools, pebbles are used in ball mills to grind in ceramics industry, to determine the gold content of jewelry.