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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Muscovite from
Boam deposit, Wangbi-ri, Uljin County, North Gyeongsang Province, South Korea


Locality type:Deposit
Classification
Species:Muscovite
Formula:KAl2(AlSi3O10)(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Muscovite data
Locality Data:Click here to view Boam deposit, Wangbi-ri, Uljin County, North Gyeongsang Province, South Korea
Data Identifiers
Mindat Occurrence Record ID:1493205
Long-form Identifier:1:3:1493205:2
GUID (UUID V4):0
Nearest other occurrences of Muscovite
7.5km (4.6 miles) ⓘOkbang Mine, Punch'on, Uljin County, North Gyeongsang Province, South Korea
15.3km (9.5 miles) ⓘJanggun mine, Bonghwa County, North Gyeongsang Province, South Korea
20.1km (12.5 miles) ⓘHyondong mine, Bonghwa County, North Gyeongsang Province, South Korea
40.7km (25.3 miles) ⓘGeumjeong Mine, Bonghwa County, North Gyeongsang Province, South Korea
44.6km (27.7 miles) ⓘSangdong Mine, Sangdong-gun, Gangwon Province, South Korea
72.8km (45.2 miles) ⓘDongcheogogsan mine, Uiseong County, North Gyeongsang Province, South Korea
78.7km (48.9 miles) ⓘHaengmae Formation, Jeongseon County, Gangwon Province, South Korea
79.4km (49.4 miles) ⓘDongil mine, Uiseong County, North Gyeongsang Province, South Korea
84.9km (52.8 miles) ⓘKwangsin, Hwanggangri District, North Chungcheong Province, South Korea
89.9km (55.9 miles) ⓘHwanggangri District, North Chungcheong Province, South Korea
References
Choi, Y. H., Park, Y. R., & Noh, J. H. (2014). Genesis of Boam lithium deposits in Wangpiri, Uljin. Journal of the Geological Society of Korea, 50(4), 489-500.
Lee, Youseong; Choi, Woohyun; Jeong, Youn-Joong; Park, Changyun (2025) Mineralogical and geochemical signatures of zircons recording magmatic to hydrothermal processes in the Li-pegmatite system at the Boam deposit, South Korea. Ore Geology Reviews, 176. doi:10.1016/j.oregeorev.2024.106403
Choi, Woohyun; Park, Changyun; Heo, Chul-Ho; Yang, Seok-Jun; Oh, Il-Hwan; Kim, Jeongmin; Lee, Youseong; Park, Jongkyu; Park, Kyung Su (2025) Ore-forming process of the rhythmic layered pegmatite imprinted in quartz: Implications for melt-melt-fluid immiscibility and pressure dependence. Ore Geology Reviews, 183. 106675 doi:10.1016/j.oregeorev.2025.106675
 
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