(UUID : 4e9c72d4-3613-4fee-9029-0f2ff1bb3f51)
Rock
Andesite
I-071
Rock
igneous rock
It is a neutral volcanic rock with an aphanitic or porphyritic texture. The mineral composition is mainly composed of plagioclase and includes pyroxene or hornblende. Plagioclase, hornblende, and pyroxene mainly appear as phenocrysts, and fine-grained accessory minerals form stone tools. It is greenish blue or greenish black in color.
11.3
cm
Quartz, Sanidine, Oligoclase, 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