Obsidian lan Slate 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
slate punika, kabeh podho rock metamorphic nggoleki-grained, foliated asalé saka krikel-jinis sedimentary rock asli dumadi saka lempung utawa awu vulkanik liwat kurang-bahan metamorphism regional
Etimologi
saka obsidianus latin, misprint saka obsianus (lapis) (watu) saka obsius
saka lawas esclate french, saka esclat (french éclat)
kelas
batuan beku
rocks metamorphic
sub-kelas
awet rock, medium atose rock
awet rock, medium atose rock
group
vulkanik
ora ditrapake
kategori liyane
rock opaque
rock grained nggoleki, rock opaque