definisi
coal iku combustible-ireng coklat ireng utawa sedimentary rock biasane kedadean ing parang tingkat ing lapisan sing disebut kasur coal
granulite nggoleki kanggo medium grained metamorphic rock karo granular kristal polygonal.
Sajarah
asal
usa
tengah europe
panemu
john peter Salley
Ora dingerteni
Etimologi
saka col term english lawas, kang wis temenan Mineral karbon fosil wiwit abad kaping 13
saka granulum latin, a gandum sethithik utawa grained nggoleki
kelas
rocks sedimentary
rocks metamorphic
sub-kelas
awet rock, rock alus
awet rock, hard rock
kulawarga
group
-
-
kategori liyane
rock grained coarse, rock grained nggoleki, medium rock grained, rock opaque
rock grained coarse, medium rock grained, rock opaque