Know all about Anthracite and Ijolite properties here. All properties of rocks are important as they define the type of rock and its application. Anthracite belongs to Metamorphic Rocks while Ijolite belongs to Igneous Rocks.Texture of Anthracite is Amorphous, Glassy whereas that of Ijolite is Earthy, Granular. Anthracite appears Veined or Pebbled and Ijolite appears Banded and Foilated. The luster of Anthracite is shiny while that of Ijolite is greasy to dull. Anthracite is available in black, brown, dark brown, grey, light to dark grey colors whereas Ijolite is available in brown, buff, cream, green, grey, pink, white colors. The commercial uses of Anthracite are alumina refineries, electricity generation, liquid fuel, manufacture of soap, solvents, dyes, plastics and fibres, paper industry and that of Ijolite are cemetery markers, creating artwork.