Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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Magnetite from
Ulsan Mine, Buk District, Ulsan, South Korea


Locality type:Mine
Classification
Species:Magnetite
Formula:Fe2+Fe23+O4
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Magnetite data
Locality Data:Click here to view Ulsan Mine, Buk District, Ulsan, South Korea
Data Identifiers
Mindat Occurrence Record ID:202863
Long-form Identifier:1:3:202863:7
GUID (UUID V4):0
Nearest other occurrences of Magnetite
27.5km (17.1 miles) ⓘKyeongju Namsan, Gyeongju City, North Gyeongsang Province, South Korea
38.1km (23.7 miles) ⓘGigye-Gyeongju granite, Gyeongju City, North Gyeongsang Province, South Korea
52.7km (32.8 miles) ⓘEonyang amethyst, Yangdung, Sannae-gun, Miryang City, South Gyeongsang Province, South Korea
98.0km (60.9 miles) ⓘGunbuk mine, Changwon City, South Gyeongsang Province, South Korea
98.2km (61.0 miles) ⓘDaljeon Intrusion, Yeongdeok County, North Gyeongsang Province, South Korea
98.5km (61.2 miles) ⓘHaman mine, Haman County, South Gyeongsang Province, South Korea
References
IMAI, Naoya, CHOI, Seon-Gyu (1984) The first Korean occurrence of roquesite. Mineralogical Journal, 12 (4) 162-172 doi:10.2465/minerj.12.162
CHOI, S. G., & IMAI, N. (1985). Ni-Fe-Co Arsenides and Sulpharsenides from the Ulsan Mine, Republic of Korea. Mining Geology, 35(189), 1-16.
Choi, S.-G.; Youm, S.-J. (2000) Compositional variation of arsenopyrite and fluid evolution at the Ulsan deposit, southeastern Korea: A low-sulfidation porphyry system. The Canadian Mineralogist, 38 (3). 567-583 doi:10.2113/gscanmin.38.3.567
Choi, S. G., & Lee, J. G. (2002). A Petrochemical Study of Granite and Fe-W Mineralization in the Ulsan Skarn Deposit. In Proceedings of the KSEEG Conference (pp. 344-346). The Korean Society of Economic and Environmental Geology.
 
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