tatanan
watu gamping punika rock sedimentary kang utamané arupi kalsium karbonat.
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
kalsit, chert, lempung, dolomite, quartz, wedhi, silt
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
aluminium oxide, NaCl, cao, wesi (iii) oxide, feo, MgO
karbon, hidrogen, nitrogen, oksigen, belerang