Know all about Hawaiite and Lignite properties here. All properties of rocks are important as they define the type of rock and its application. Hawaiite belongs to Igneous Rocks while Lignite belongs to Sedimentary Rocks.Texture of Hawaiite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular whereas that of Lignite is Amorphous, Glassy. Hawaiite appears Dull and Soft and Lignite appears Veined or Pebbled. The luster of Hawaiite is not available while that of Lignite is dull to vitreous to submetallic. Hawaiite 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 Hawaiite are creating artwork, sea defence and that of Lignite are electricity generation.