definisi
mugearite jinis oligoclase prewangan basalt, uga dumadi saka olivine, apatite, lan oksida opaque
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
Sajarah
asal
Skye, Scotland
Ethiopia
panemu
alfred Harker
obsius
Etimologi
saka mugear + -ite
saka obsidianus latin, misprint saka obsianus (lapis) (watu) saka obsius
kelas
batuan beku
batuan beku
sub-kelas
awet rock, medium atose rock
awet rock, medium atose rock
kulawarga
group
vulkanik
vulkanik
kategori liyane
rock opaque
rock opaque