definisi
coal iku combustible-ireng coklat ireng utawa sedimentary rock biasane kedadean ing parang tingkat ing lapisan sing disebut kasur coal
kapur iku alus, putih, watu gamping powdery dumadi utamané saka meriam fosil saka foraminifers
panemu
john peter Salley
Dingertèni
Etimologi
saka col term english lawas, kang wis temenan Mineral karbon fosil wiwit abad kaping 13
saka lawas kapur english cealc, jeruk, plester, krikil, asal saka basa Yunani khalix krikil cilik, ing english ditransfer menyang opaque, putih, watu gamping alus
kelas
rocks sedimentary
rocks sedimentary
sub-kelas
awet rock, rock alus
awet rock, rock alus
group
ora ditrapake
ora ditrapake
kategori liyane
rock grained coarse, rock grained nggoleki, medium rock grained, rock opaque
rock grained nggoleki, rock opaque