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
migmatite biasane rock granitic ing rock inang metamorphic kang dumadi saka loro komponen intermingled nanging pisah
Sajarah
asal
Ethiopia
Alps kidul, prancis
panemu
obsius
Jakob sederholm
Etimologi
saka obsidianus latin, misprint saka obsianus (lapis) (watu) saka obsius
saka migma tembung yunani sing artine dicampur
kelas
batuan beku
rocks metamorphic
sub-kelas
awet rock, medium atose rock
awet rock, medium atose rock
kulawarga
group
vulkanik
-
kategori liyane
rock opaque
rock grained coarse, rock grained nggoleki, medium rock grained, rock opaque