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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
phonolite iku sawijining extrusive igneous rock rock vulkanik umum saka komposisi kimia antarané felsic lan mafic
saka makna greek mungel watu amarga saka metallic swara mrodhuksi yen plate unfractured wis mejet
awet rock, medium atose rock
rock grained nggoleki, rock opaque