(UUID : 188678ff-9de8-49b0-b96f-9802e88c2752)
Rock
Dacite
I-029
Rock
igneous rock
It is a volcanic rock with a high iron content, and its SiO2 content is about 63~67% (halfway between andesite and rhyolite). It is usually a porphyritic texture, and its color is often bright, but it varies depending on the eruption conditions and crystalline. The sacral stone in the decite usually appears as a zonal structure.
12.0
cm
Quartz, Plagioclase, Orthoclase, Biotite
#igneous rock
South Korea
Daegu
Nam-gu, Daemyung-dong
Department of Geology and Geophysics, Kangwon National University
+82-33-250-8550
Geology and Exhibition Hall
DOI
CC BY-NC - The author is free to use, but not for profit.
The copyright of this data is held by KIGAM.
2024-09-05