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
diorite iku werna abu-abu kanggo penengah rock intrusive igneous peteng-werna abu-abu dumadi prinsipe saka plagioclase Feldspar, biotite, hornblende, lan pyroxene
Sajarah
asal
Ethiopia
-
panemu
obsius
Ora dingerteni
Etimologi
saka obsidianus latin, misprint saka obsianus (lapis) (watu) saka obsius
saka awal abad kaping 19 diciptakaké ing french, kawangun teratur saka diorizein greek mbedakake
kelas
batuan beku
batuan beku
sub-kelas
awet rock, medium atose rock
awet rock, hard rock
kulawarga
group
vulkanik
plutonic
kategori liyane
rock opaque
rock grained coarse, medium rock grained, rock opaque