(UUID : 48c7ddd0-1cf8-4a29-b1ac-5a47bdbae207)
Rock
Trachyte porphyry
I-028
Rock
igneous rock
It is a type of volcanic rock with a porphyritic or porphyritic texture and has the same chemical composition as syenite. It contains a lot of alkali feldspar and relatively little plagioclase and quartz. It is white to light gray or light brown to green. It shows a porphyritic texture and the phenocrysts are mainly composed of sanidine or biotite, which gives the surface a very rough feeling.
10.8
cm
Orthoclase, Na-Plagioclase(Andesine)
#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