definisi
asal
panemu
Etimologi
kelas
sub-kelas
group
kategori liyane
obsidian punika kaca vulkanik alami kawangun minangka rock igneous extrusive. diprodhuksi nalika lahar felsic extruded saka gunung mbledhos ndingin kanthi cepet karo wutah kristal minimal
saka obsidianus latin, misprint saka obsianus (lapis) (watu) saka obsius
awet rock, medium atose rock
comendite punika hard, peralkaline igneous rock, jinis cahya rhyolite werna abu-abu biru
comendite asalé jeneng saka wilayah saka le commende ing San Pietro pulo ing Italia
medium rock grained, rock opaque