definisi
Anthracite jinis rock sedimentary kang hard lan macem-macem batu bara sing wis luster dhuwur
porphyry punika reddish-coklat kanggo kain rock igneous ngemot phenocrysts akeh macem-macem mineral ditempelake ing matrik nggoleki-grained
Sajarah
asal
pennsylvania, kita
egypt
panemu
Ora dingerteni
Ora dingerteni
Etimologi
saka anthrakites greek, saka anthrax, anthrak meaning coal
saka lawas porfire french, saka porfiro italian lan ing sawetara kasus langsung saka porphyrites latin
kelas
rocks metamorphic
batuan beku
sub-kelas
awet rock, rock alus
awet rock, hard rock
kulawarga
group
-
plutonic
kategori liyane
rock grained coarse, rock grained nggoleki, medium rock grained, rock opaque
rock grained nggoleki, rock opaque