Obsidian lan Tonalite Definition
definisi
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
tonalite punika rock plutonic coarse-grained dumadi utamané saka plagioclase sodic, kuarsa, hornblende utawa mineral mafic liyane karo susunan phaneritic
asal
Ethiopia
tonale, italy
Etimologi
saka obsidianus latin, misprint saka obsianus (lapis) (watu) saka obsius
saka tonale pass, italy lor, + -ite1
kelas
batuan beku
batuan beku
sub-kelas
awet rock, medium atose rock
awet rock, hard rock
kategori liyane
rock opaque
rock grained coarse, rock grained nggoleki, medium rock grained, rock opaque