definisi
comendite punika hard, peralkaline igneous rock, jinis cahya rhyolite werna abu-abu biru
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
Sajarah
asal
italy
Ethiopia
panemu
Ora dingerteni
obsius
Etimologi
comendite asalé jeneng saka wilayah saka le commende ing San Pietro pulo ing Italia
saka obsidianus latin, misprint saka obsianus (lapis) (watu) saka obsius
kelas
batuan beku
batuan beku
sub-kelas
awet rock, hard rock
awet rock, medium atose rock
kulawarga
group
vulkanik
vulkanik
kategori liyane
medium rock grained, rock opaque
rock opaque