(UUID : 35afe279-eb8f-4c3e-814c-66554dccac88)
Rock
Dacite
I-080
Rock
igneous rock
It is a volcanic rock with high iron content, and the SiO2 content is about 63~67% (between andesite and rhyolite). It is usually a rock with a porphyritic texture, and the color is often light, but varies depending on the eruption conditions and crystallinity. The plagioclase in dacite usually appears in a zonal structure.
10.0
cm
Quartz, Plagioclase, Orthoclase, Biotite
#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