Know all about Anthracite and Diabase properties here. All properties of rocks are important as they define the type of rock and its application. Anthracite belongs to Metamorphic Rocks while Diabase belongs to Igneous Rocks.Texture of Anthracite is Amorphous, Glassy whereas that of Diabase is Aphanitic, Granular. Anthracite appears Veined or Pebbled and Diabase appears Vesicular. The luster of Anthracite is shiny while that of Diabase is not available. Anthracite is available in black, brown, dark brown, grey, light to dark grey colors whereas Diabase is available in dark grey to black 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 Diabase are an oil and gas reservoir, cemetery markers, commemorative tablets, laboratory bench tops, jewelry, sea defence, tombstones.