Rhyolite lan Obsidian Definition
definisi
rhyolite punika rock igneous nggoleki-grained kang sugih ing silika
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
asal
lor amerika
Ethiopia
panemu
Ferdinand von Richthofen
obsius
Etimologi
saka rhyolit german, saka stream lahar greek rhuax + watu lithos
saka obsidianus latin, misprint saka obsianus (lapis) (watu) saka obsius
kelas
batuan beku
batuan beku
sub-kelas
awet rock, hard rock
awet rock, medium atose rock
kategori liyane
rock grained coarse, rock opaque
rock opaque