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Obsidian
Obsidian

Borolanite
Borolanite



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Obsidian
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Borolanite

Obsidian lan Borolanite Definition

1 Definition
1.1 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
borolanite iku macem-macem nepheline syenite lan belongs kanggo batuan beku lan ngandhut nepheline-alkali pseudomorphs Feldspar kang dumadi putih panggonan minangka gelambir ing matrik rock peteng
1.2 Sajarah
1.2.1 asal
Ethiopia
Scotland
1.2.2 panemu
obsius
Dingertèni
1.3 Etimologi
saka obsidianus latin, misprint saka obsianus (lapis) (watu) saka obsius
saka Komplek igneous alkalic near Loch borralan ing Kulon Scotland
1.4 kelas
batuan beku
batuan beku
1.4.1 sub-kelas
awet rock, medium atose rock
awet rock, medium atose rock
1.5 kulawarga
1.5.1 group
vulkanik
plutonic
1.6 kategori liyane
rock opaque
rock grained nggoleki, rock opaque