Coal Composition

Coal has the main composition of carbon, and carbon in a nature make a chemical reaction to build their substances. These substances are varying and have their own name depend on the composition on their chain. Carbon in their chemical chain usually called as carbonates that have many name of these substances.
The mineral that usually available on coal are as follows:
Silicates:
  • Clay minerals:
  1. Kaolinite Al2Si2O3(OH)4
  2. Illite
  3. Montmorillonite
  4. Chlorite
  5. Mixed layer clays
  • Others:
  1. Quartz SiO2
  2. Chalcedony SiO2
  3. Feldspar KAlSi3O4
  4. Tourmaline NaMg3Al6B3Si6O27(OH)4
Sulphides:
  • Pyrite FeS2
  • Marcasite FeS2
  • Sphalerite ZnS
  • Galena PbS
Carbonates:
  • Calcite CaCO3
  • Dolomite (CaMg)CO3
  • Siderite FeCO3
  • Aroganite CaCO3
  • Ankerite (FeMgCa)CO3
  • Dawsonite NaAlCO3(OH)2
  • Strontianite SrCO3
Sulphates:
  • Gypsum CaSO4.2H2O
  • Barite BaSO4
  • Anhydrite CaSO4
  • Coquimbite Fe2(SO4)2.9H2O
  • Szomolnokite NaFe3(SO4)2(OH)6
Other minerals:
  • Apatite Ca2F(PO4)3
  • Goyazite SrAl3(PO4)2(OH)5H2O
  • Anatese TiO2
  • Rutile TiO2
  • Haematite Fe2O3
  • Geothite Fe(OH)3
  • Zircon ZrSiO4

Comments

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Zean
www.imarksweb.org

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