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
Schist punika bahan metamorphic rock medium karo medium kanggo gedhe, warata, sheet kaya pari-parian ing orientasi preferred
saka schiste french, skhistos greek IE pamisah
awet rock, medium atose rock
rock grained coarse, rock grained nggoleki, medium rock grained, rock opaque