definisi
Anthracite jinis rock sedimentary kang hard lan macem-macem batu bara sing wis luster dhuwur
pumice punika rock vulkanik sing kasusun saka Highly vesicular atos kaca vulkanik tekstur, kang bisa utawa ora bisa ngemot kristal
asal
pennsylvania, kita
spain
panemu
Dingertèni
Dingertèni
Etimologi
saka anthrakites greek, saka anthrax, anthrak meaning coal
saka pomis french lawas, saka varian dialect latin saka pumex
kelas
rocks metamorphic
batuan beku
sub-kelas
awet rock, rock alus
awet rock, medium atose rock
group
ora ditrapake
vulkanik
kategori liyane
rock grained coarse, rock grained nggoleki, medium rock grained, rock opaque
rock grained nggoleki, rock opaque