Obsidian lan Granophyre 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
granophyre jinis rock granitic kang kasusun saka intergrown Feldspar lan quartz kristal ing medium kanggo nggoleki groundmass grained
Etimologi
saka obsidianus latin, misprint saka obsianus (lapis) (watu) saka obsius
saka granophyr german, saka Granit granit + porphyr
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