The Rock - COAL

  • Sedimentary Rock Type:  Biochemical
  • Related to:  Shale, sandstone and limestone
  • Color:  Generally black to dark brown or gray
  • Texture:  Amorphous and glassy to coarse fragments
  • Origins:  Swampy environments
  • Common Minerals:  Graphite , pyrite and jet (a mineraloid
  • Uses:  Source of energy, lubricant, pigment and source of carbon for industrial purposes

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