definisi
coal iku combustible-ireng coklat ireng utawa sedimentary rock biasane kedadean ing parang tingkat ing lapisan sing disebut kasur coal
rhyolite punika rock igneous nggoleki-grained kang sugih ing silika
Sajarah
asal
usa
lor amerika
panemu
john peter Salley
Ferdinand von Richthofen
Etimologi
saka col term english lawas, kang wis temenan Mineral karbon fosil wiwit abad kaping 13
saka rhyolit german, saka stream lahar greek rhuax + watu lithos
kelas
rocks sedimentary
batuan beku
sub-kelas
awet rock, rock alus
awet rock, hard rock
kulawarga
group
-
vulkanik
kategori liyane
rock grained coarse, rock grained nggoleki, medium rock grained, rock opaque
rock grained coarse, rock opaque