definisi
Anthracite jinis rock sedimentary kang hard lan macem-macem batu bara sing wis luster dhuwur
essexite kang uga dikenal minangka nepheline monzogabbro, iku werna abu-abu utawa ireng holocrystalline plutonic rock iigneous peteng
asal
pennsylvania, kita
usa
panemu
Dingertèni
Dingertèni
Etimologi
saka anthrakites greek, saka anthrax, anthrak meaning coal
saka dhaerah ing Essex County, massachusetts, kita
kelas
rocks metamorphic
batuan beku
sub-kelas
awet rock, rock alus
awet rock, hard rock
group
ora ditrapake
plutonic
kategori liyane
rock grained coarse, rock grained nggoleki, medium rock grained, rock opaque
rock grained nggoleki, rock opaque