Know all about Icelandite and Anthracite properties here. All properties of rocks are important as they define the type of rock and its application. Icelandite belongs to Igneous Rocks while Anthracite belongs to Metamorphic Rocks.Texture of Icelandite is Aphanitic to Porphyritic whereas that of Anthracite is Amorphous, Glassy. Icelandite appears Dull and Soft and Anthracite appears Veined or Pebbled. The luster of Icelandite is vitreous while that of Anthracite is shiny. Icelandite is available in bluish - grey, grey, pink, yellow colors whereas Anthracite is available in black, brown, dark brown, grey, light to dark grey colors. The commercial uses of Icelandite are cemetery markers, creating artwork and that of Anthracite are alumina refineries, electricity generation, liquid fuel, manufacture of soap, solvents, dyes, plastics and fibres, paper industry.