Obsidian lan Shonkinite 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
shonkinite punika, rock igneous langka peteng-colored lan intrusive kang ngandhut augite lan Feldspar orthoclase minangka konstituen dhasar sawijining
panemu
obsius
Ora dingerteni
Etimologi
saka obsidianus latin, misprint saka obsianus (lapis) (watu) saka obsius
saka jeneng shonkin sag kisaran ing gunung Highwood-lor tengah montana, kita
kelas
batuan beku
batuan beku
sub-kelas
awet rock, medium atose rock
awet rock, medium atose rock
kategori liyane
rock opaque
rock grained coarse, rock grained nggoleki, medium rock grained, rock opaque