(UUID : fd70c5a3-9c83-4a2a-93f0-97b48348337b)
Rock
Obsidian
I-069
Rock
igneous rock
It is a vitreous volcanic rock rich in silicic acid. Lava is rapidly degrading on the surface. As a rule, it has a dense, vitreous sheen, black, gray, reddish, brown color. It is easily broken by shell shapes.
16.0
cm
Orthoclase, Plagioclase, Quartz, Biotite, Muscovite
#igneous rock
South Korea
Gyeongsangbuk-do
Mungyeong-si, Maseong-myeon Ojeongsan
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