Obsidian lan Diabase Definition
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
diabase punika rock igneous nggoleki-grained kang dumadi saka biasane pyroxene lan Feldspar
panemu
obsius
christian Leopold von Buch
Etimologi
saka obsidianus latin, misprint saka obsianus (lapis) (watu) saka obsius
saka di greek + basa
kelas
batuan beku
batuan beku
sub-kelas
awet rock, medium atose rock
awet rock, hard rock
kategori liyane
rock opaque
rock grained nggoleki, medium rock grained, rock opaque