Pegmatite lan Batubara Definition
definisi
pegmatite rock punika holocrystalline, rock igneous intrusive kang dumadi saka interlocking kristal phaneritic
coal iku combustible-ireng coklat ireng utawa sedimentary rock biasane kedadean ing parang tingkat ing lapisan sing disebut kasur coal
panemu
rj Hauy
john peter Salley
Etimologi
saka pegma greek, pegmat kang bab liya- katunggilaké + -ite
saka col term english lawas, kang wis temenan Mineral karbon fosil wiwit abad kaping 13
kelas
batuan beku
rocks sedimentary
sub-kelas
awet rock, hard rock
awet rock, rock alus
group
plutonic
ora ditrapake
kategori liyane
rock grained coarse, rock opaque
rock grained coarse, rock grained nggoleki, medium rock grained, rock opaque