Know all about Quartzite and Lignite properties here. All properties of rocks are important as they define the type of rock and its application. Quartzite belongs to Metamorphic Rocks while Lignite belongs to Sedimentary Rocks.Texture of Quartzite is Foliated, Granular whereas that of Lignite is Amorphous, Glassy. Quartzite appears Lustrous and Lignite appears Veined or Pebbled. The luster of Quartzite is vitreous while that of Lignite is dull to vitreous to submetallic. Quartzite is available in black, blue, brown, green, light grey, purple, white, yellow colors whereas Lignite is available in black, brown, dark brown, grey, light to dark grey colors. The commercial uses of Quartzite are an oil and gas reservoir, as armour rock for sea walls, cemetery markers, commemorative tablets, in aquifers, laboratory bench tops, petroleum reservoirs, soil conditioner, source of magnesia (mgo), tombstones, used in aquariums and that of Lignite are electricity generation.