(UUID : 8d368fa4-d27e-448d-a8ab-648965927829)
Rock
Nepheline syenite
I-047
Rock
igneous rock
It is a neutral plutonite with the same composition as granite, but without quartz or in relatively small quantities (less than 5%). Among feldspar, the content of alkaline feldspar is high, and the content of plagiospar is relatively small. As the magma slowly cools deep underground, it crystallizes, making the coarse feldspar crystals easily visible to the naked eye. It is a cinnabar that characteristically contains nephelin.
10.0
cm
Plagioclase, Pyroxene
#igneous rock
Department of Geology and Geophysics, Kangwon National University
+82-33-250-8550
Geology and Exhibition Hall
DOI
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2024-09-05