Know all about Anthracite and Tephrite properties here. All properties of rocks are important as they define the type of rock and its application. Anthracite belongs to Metamorphic Rocks while Tephrite belongs to Igneous Rocks.Texture of Anthracite is Amorphous, Glassy whereas that of Tephrite is Aphanitic to Porphyritic. Anthracite appears Veined or Pebbled and Tephrite appears Vesicular. The luster of Anthracite is shiny while that of Tephrite is subvitreous to dull. Anthracite is available in black, brown, dark brown, grey, light to dark grey colors whereas Tephrite is available in black, brown, colourless, green, grey, 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 Tephrite are production of lime, soil conditioner.