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
appinite iku sawijining rock beku ing kang kristal sing supaya nggoleki grained sing mineral individu ora bisa gampang bentenaken
saka macem-macem lamprophyre greek lampros padhang lan kang madhangi + porphureos kain
awet rock, medium atose rock
rock grained coarse, rock grained nggoleki, rock opaque