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Etimologi
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coal iku combustible-ireng coklat ireng utawa sedimentary rock biasane kedadean ing parang tingkat ing lapisan sing disebut kasur coal
saka col term english lawas, kang wis temenan Mineral karbon fosil wiwit abad kaping 13
rock grained coarse, rock grained nggoleki, medium rock grained, rock opaque
norite punika mafic intrusive igneous rock dumadi umumé saka calcium-sugih plagioclase labradorite, orthopyroxene, lan olivine
saka jeneng norwegian kanggo norway, Norge
rock grained coarse, rock opaque