definisi
asal
panemu
Etimologi
kelas
sub-kelas
group
kategori liyane
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
saka obsidianus latin, misprint saka obsianus (lapis) (watu) saka obsius
awet rock, medium atose rock
adamellite punika porphyritic rock igneous coarse-grained, macem-macem monzogranite lan didominasi dening phenocrysts saka orthoclase ing groundmass granular saka perthite, plagioclase lan quartz
saka adamellit german lan saka monte adamello, gunung ing Italia, lokalitas sawijining
rock grained coarse, rock opaque