1 Definition
1.1 definisi
wesi sugih rock extrusive ditemokake minangka anggota saka alkali basalt magma seri
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
1.2 Sajarah
1.2.1 asal
Pulo cilik saka Mull, Scotland
Ethiopia
1.2.2 panemu
1.3 Etimologi
saka jeneng panemu, ben liyane
saka obsidianus latin, misprint saka obsianus (lapis) (watu) saka obsius
1.4 kelas
1.4.1 sub-kelas
awet rock, medium atose rock
awet rock, medium atose rock
1.5 kulawarga
1.5.1 group
1.6 kategori liyane
rock grained nggoleki, rock opaque
rock opaque