definisi
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
ignimbrite punika rock vulkanik dumadi utamané saka pecahan pumice, kawangun dening consolidation saka materi setor dening mili pyroclastic
Sajarah
asal
Ethiopia
new zealand
panemu
obsius
Patrick marshall
Etimologi
saka obsidianus latin, misprint saka obsianus (lapis) (watu) saka obsius
saka geni ignis latin + Imber, padusan imbr- udan, badai maya + -ite
kelas
batuan beku
batuan beku
sub-kelas
awet rock, medium atose rock
awet rock, medium atose rock
kulawarga
group
vulkanik
vulkanik
kategori liyane
rock opaque
rock grained nggoleki, rock opaque