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