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
rapakivi granit punika granit hornblende-biotite ngemot kristal dibunderaké akeh orthoclase kang mantled karo oligoclase
saka rapakivi finnish kang stands for rock crumbly
rock grained coarse, rock opaque