Know all about Adakite and Lignite properties here. All properties of rocks are important as they define the type of rock and its application. Adakite belongs to Igneous Rocks while Lignite belongs to Sedimentary Rocks.Texture of Adakite is Porphyritic whereas that of Lignite is Amorphous, Glassy. Adakite appears Dull and Soft and Lignite appears Veined or Pebbled. The luster of Adakite is grainy, pearly and vitreous while that of Lignite is dull to vitreous to submetallic. Adakite is available in black, brown, light to dark grey colors whereas Lignite is available in black, brown, dark brown, grey, light to dark grey colors. The commercial uses of Adakite are commemorative tablets, pottery, used in aquariums and that of Lignite are electricity generation.