Know all about Anthracite and Foidolite properties here. All properties of rocks are important as they define the type of rock and its application. Anthracite belongs to Metamorphic Rocks while Foidolite belongs to Igneous Rocks.Texture of Anthracite is Amorphous, Glassy whereas that of Foidolite is Earthy. Anthracite appears Veined or Pebbled and Foidolite appears Dull. The luster of Anthracite is shiny while that of Foidolite is subvitreous to dull. Anthracite is available in black, brown, dark brown, grey, light to dark grey colors whereas Foidolite is available in black, brown, colourless, 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 Foidolite are cemetery markers, commemorative tablets, creating artwork.