definisi
asal
panemu
Etimologi
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sub-kelas
group
kategori liyane
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
rhyolite punika rock igneous nggoleki-grained kang sugih ing silika
saka rhyolit german, saka stream lahar greek rhuax + watu lithos
rock grained coarse, rock opaque