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
rhomb-porphyry punika igneous rock porphyritic karo wedge KALUBÈRAN utawa lensa shaped anorthoclase utawa phenocrysts Feldspar
saka tembung latin sing tegese kain
awet rock, medium atose rock
rock grained nggoleki, rock opaque