(UUID : ae6596bd-7f02-4a37-bf1e-5e01e91fff1d)
Rock
Hornblende andesite
I-086
Rock
igneous rock
It is a neutral volcanic rock with amorphous or porphyritic texture. The mineral composition is mainly plagioclase and includes pyroxene or hornblende. Hornblende appears as phenocrysts, and the stone tools are usually composed of pyroxene, sphagnum moss, plagioclase, magnetite, and glass. It is greenish blue or greenish black in color.
11.0
cm
Quartz, Feldspar
#igneous rock
United States
Nevada
Mineral County
Department of Geology and Geophysics, Kangwon National University
+82-33-250-8550
Igneous Petrology Laboratory
DOI
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2024-09-05