definisi
Anthracite jinis rock sedimentary kang hard lan macem-macem batu bara sing wis luster dhuwur
gabbro iku sawijining igneous rock intrusive kang kimia padha karo kanggo basalt plutonic
asal
pennsylvania, kita
germany
panemu
Ora dingerteni
christian Leopold von Buch
Etimologi
saka anthrakites greek, saka anthrax, anthrak meaning coal
saka latin glaber gundhul, Gamelan, gundul
kelas
rocks metamorphic
batuan beku
sub-kelas
awet rock, rock alus
awet rock, hard rock
kategori liyane
rock grained coarse, rock grained nggoleki, medium rock grained, rock opaque
rock grained coarse, rock opaque