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
breccia punika rock dumadi saka pecahan sudut saka watu kang cemented dening materi calcareous becik
saka italian, secara harfiah kerikil, asal Jerman lan related kanggo break
rock grained coarse, medium rock grained, rock opaque