tatanan
Character length exceed error
  
Wangun coal saka klempakan saka lebu tetanduran ing lingkungan rawa kang wis kakubur sedimen kayata lendhut utawa wedhi lan banjur compacted kanggo mbentuk coal.
  
isi Mineral
hematite, magnetite, quartz
  
analcime, apatite, barite, kalsit, chalcopyrite, chlorite, chromite, clausthalite, mineral lempung, grup crandallite, dolomite, Feldspar, galena, gypsum, marcasite, muscovite utawa illite, pyrite, quartz, siderite, sphalerite, zirkon
  
senyawa isi
fe, wesi (iii) oxide, silikon dioksida
  
karbon, hidrogen, nitrogen, oksigen, belerang