Quartzite lan Obsidian Definition
definisi
Quartzite punika rock non-foliated metamorphic sing formulir dening metamorphism saka sandstone quartz murni
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
Etimologi
saka quartz + -ite
saka obsidianus latin, misprint saka obsianus (lapis) (watu) saka obsius
kelas
rocks metamorphic
batuan beku
sub-kelas
awet rock, hard rock
awet rock, medium atose rock
group
ora ditrapake
vulkanik
kategori liyane
medium rock grained, rock opaque
rock opaque