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
sandstone wis ditetepake minangka rock kang dumadi saka pari-parian wedhi-ukuran saka macem-macem mineral biasane ukuran seragam lan asring Gamelan lan dibunderaké
Sajarah
asal
Ethiopia
-
panemu
obsius
Ora dingerteni
Etimologi
saka obsidianus latin, misprint saka obsianus (lapis) (watu) saka obsius
saka komposisi, wedhi lan watu
kelas
batuan beku
rocks sedimentary
sub-kelas
awet rock, medium atose rock
awet rock, hard rock
kulawarga
group
vulkanik
-
kategori liyane
rock opaque
rock grained coarse, rock grained nggoleki, rock opaque