definisi
breccia punika rock dumadi saka pecahan sudut saka watu kang cemented dening materi calcareous becik
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
Sajarah
asal
england
Ethiopia
panemu
Ora dingerteni
obsius
Etimologi
saka italian, secara harfiah kerikil, asal Jerman lan related kanggo break
saka obsidianus latin, misprint saka obsianus (lapis) (watu) saka obsius
kelas
rocks sedimentary
batuan beku
sub-kelas
awet rock, hard rock
awet rock, medium atose rock
kulawarga
group
-
vulkanik
kategori liyane
rock grained coarse, medium rock grained, rock opaque
rock opaque