definisi
lamprophyre wis batuan beku umum utamané kedadean minangka dikes, lopoliths, laccoliths, saham lan intrusions cilik
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
-
Ethiopia
panemu
Ora dingerteni
obsius
Etimologi
saka lampros greek padhang lan kang madhangi + porphureos kain
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
plutonic
vulkanik
kategori liyane
rock grained coarse, rock grained nggoleki, rock opaque
rock opaque