Wangun coal saka klempakan saka lebu tetanduran ing lingkungan rawa kang wis kakubur sedimen kayata lendhut utawa wedhi lan banjur compacted kanggo mbentuk coal.
soapstone punika talc-Schist, kang jinis rock metamorphic lan iku umumé dumadi saka talc Mineral lan kanthi mangkono inmagnesium sugih.
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
albite, apatite, biotite, kalsit, karbonat, mineral lempung, hornblende, ilmenite, micas, plagioclase, pyroxene, quartz
karbon, hidrogen, nitrogen, oksigen, belerang
cao, mg, MgO
metamorphism kakubur, metamorphism cataclastic, metamorphism regional
metamorphism kakubur, metamorphism cataclastic, kontak metamorphism, hidrotermal metamorphism, impact metamorphism, metamorphism regional