Vote for your favorite mineral in #MinCup26! - Cuprite vs. Orpiment
It's a fiery match of vibrant red Cuprite and just as saturated orange Orpiment battle for your votes!
Log InRegister
Quick Links : The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic TimeExplore Fossils
Minerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral QuizTime Machine
Photo SearchPhoto GalleriesSearch by ColorPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Geumseong Mo deposit, Hwanggangri District, North Chungcheong Province, South Koreai
Regional Level Types
Geumseong Mo depositDeposit
Hwanggangri DistrictMining District
North Chungcheong ProvinceProvince
South KoreaCountry

This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearch
Latitude & Longitude (WGS84):
37° 3' 46'' North , 128° 11' 43'' East
Latitude & Longitude (decimal):
37.06292,128.19542
GRN:
N25E74
Type:
Deposit
Köppen climate type:
Dwa : Monsoon-influenced hot-summer humid continental climate
Nearest Settlements:
PlacePopulationDistance
Neietsu25,413 (2012)27.7km
Pyeongchang9,940 (2018)38.4km
Wŏnju243,387 (2017)39.0km
Koesan44,461 (2012)45.3km
Eisen84,625 (2018)47.1km
Mindat Locality ID:
422185
Long-form identifier:
mindat:1:2:422185:5
GUID (UUID V4):
0


Mo-bearing skarn deposit within mixed dolostone-limestone in Joseon Supergroup with calcic skarn of upper part and magnesian skarn of lower part.

The Geumseong Mo deposit is situated within the Cambro–Ordovician dolomite–limestone series of the Lower Heungwolri and upper Samtaesan Formation. The bottom of a Mo orebody revealed the presence of an aplitic cupola, and based on the petrographic characteristics and age constraints, it was identified as a part of the Muamsa granite. The proved reserves of the Geumseong deposit were reported to be 1,315,200 metric tons (MoS2 0.40 %). Currently, it is the sole operating Mo mine in South Korea, producing approximately 480 to 910 tons annually since the 2010s.
Two spatially distinct types of skarn formation were observed in the Geumseong deposit. The shallower calcic Mo skarn has replaced massive or argillaceous platy limestone and contains hedenbergite, garnet, epidote, wollastonite, magnetite, hematite, actinolite, and chlorite. The deeper proximal skarn is a magnesian Fe skarn that discordantly replaced dolomitic layer within gray limestone at the contact with the aplitic cupola on a scale of several meters. The skarn is divided into endoskarn and exoskarn. The former exhibits a limited distribution, typically less than a few centimeters in width, whereas the latter occurs more broadly, with a width of several meters.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


23 valid minerals.

Rock Types Recorded


Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Actinolite
Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
ⓘ Almandine
Formula: Fe2+3Al2(SiO4)3
ⓘ 'Amphibole Supergroup'
Formula: AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
ⓘ Andradite
Formula: Ca3Fe3+2(SiO4)3
ⓘ Calcite
Formula: CaCO3
ⓘ Chalcopyrite
Formula: CuFeS2
ⓘ 'Chlorite Group'
ⓘ 'Clinopyroxene Subgroup'
ⓘ Diopside
Formula: CaMgSi2O6
ⓘ Dolomite
Formula: CaMg(CO3)2
ⓘ Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘ 'Garnet Group'
Formula: X3Z2(SiO4)3
ⓘ Grossular
Formula: Ca3Al2(SiO4)3
ⓘ Hedenbergite
Formula: CaFe2+Si2O6
ⓘ Hematite
Formula: Fe2O3
ⓘ 'K Feldspar'
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Molybdenite
Formula: MoS2
ⓘ 'Olivine Group'
Formula: M2SiO4
ⓘ Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
ⓘ Pyrite
Formula: FeS2
ⓘ Pyrope
Formula: Mg3Al2(SiO4)3
ⓘ 'Pyroxene Group'
Formula: ADSi2O6
ⓘ Pyrrhotite
Formula: Fe1-xS
ⓘ Quartz
Formula: SiO2
ⓘ 'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4
ⓘ Spessartine
Formula: Mn2+3Al2(SiO4)3
ⓘ Sphalerite
Formula: ZnS
ⓘ Talc
Formula: Mg3Si4O10(OH)2
ⓘ Tremolite
Formula: ◻Ca2Mg5(Si8O22)(OH)2
ⓘ Wollastonite
Formula: Ca3(Si3O9)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘSphalerite2.CB.05aZnS
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘPyrrhotite2.CC.10Fe1-xS
ⓘMolybdenite2.EA.30MoS2
ⓘPyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘHematite4.CB.05Fe2O3
ⓘQuartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘDolomite5.AB.10CaMg(CO3)2
Group 9 - Silicates
ⓘAndradite9.AD.25Ca3Fe3+2(SiO4)3
ⓘAlmandine9.AD.25Fe2+3Al2(SiO4)3
ⓘGrossular9.AD.25Ca3Al2(SiO4)3
ⓘPyrope9.AD.25Mg3Al2(SiO4)3
ⓘSpessartine9.AD.25Mn2+3Al2(SiO4)3
ⓘEpidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘDiopside9.DA.15CaMgSi2O6
ⓘHedenbergite9.DA.15CaFe2+Si2O6
ⓘActinolite9.DE.10◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
ⓘTremolite9.DE.10◻Ca2Mg5(Si8O22)(OH)2
ⓘWollastonite9.DG.05Ca3(Si3O9)
ⓘTalc9.EC.05Mg3Si4O10(OH)2
ⓘPhlogopite9.EC.20KMg3(AlSi3O10)(OH)2
Unclassified
ⓘ'Amphibole Supergroup'-AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
ⓘ'Chlorite Group'-
ⓘ'Clinopyroxene Subgroup'-
ⓘ'K Feldspar'-
ⓘ'Pyroxene Group'-ADSi2O6
ⓘ'Garnet Group'-X3Z2(SiO4)3
ⓘ'Serpentine Subgroup'-D3[Si2O5](OH)4
ⓘ'Olivine Group'-M2SiO4

List of minerals for each chemical element

HHydrogen
Hⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Hⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Hⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Hⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Hⓘ TalcMg3Si4O10(OH)2
Hⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Hⓘ Serpentine SubgroupD3[Si2O5](OH)4
CCarbon
Cⓘ CalciteCaCO3
Cⓘ DolomiteCaMg(CO3)2
OOxygen
Oⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Oⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Oⓘ AndraditeCa3Fe23+(SiO4)3
Oⓘ AlmandineFe32+Al2(SiO4)3
Oⓘ CalciteCaCO3
Oⓘ DiopsideCaMgSi2O6
Oⓘ DolomiteCaMg(CO3)2
Oⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oⓘ GrossularCa3Al2(SiO4)3
Oⓘ HedenbergiteCaFe2+Si2O6
Oⓘ HematiteFe2O3
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Oⓘ PyropeMg3Al2(SiO4)3
Oⓘ QuartzSiO2
Oⓘ SpessartineMn32+Al2(SiO4)3
Oⓘ TalcMg3Si4O10(OH)2
Oⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Oⓘ WollastoniteCa3(Si3O9)
Oⓘ Pyroxene GroupADSi2O6
Oⓘ Garnet GroupX3Z2(SiO4)3
Oⓘ Serpentine SubgroupD3[Si2O5](OH)4
Oⓘ Olivine GroupM2SiO4
FFluorine
Fⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
MgMagnesium
Mgⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Mgⓘ DiopsideCaMgSi2O6
Mgⓘ DolomiteCaMg(CO3)2
Mgⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Mgⓘ PyropeMg3Al2(SiO4)3
Mgⓘ TalcMg3Si4O10(OH)2
Mgⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
AlAluminium
Alⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Alⓘ AlmandineFe32+Al2(SiO4)3
Alⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Alⓘ GrossularCa3Al2(SiO4)3
Alⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Alⓘ PyropeMg3Al2(SiO4)3
Alⓘ SpessartineMn32+Al2(SiO4)3
SiSilicon
Siⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Siⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Siⓘ AndraditeCa3Fe23+(SiO4)3
Siⓘ AlmandineFe32+Al2(SiO4)3
Siⓘ DiopsideCaMgSi2O6
Siⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Siⓘ GrossularCa3Al2(SiO4)3
Siⓘ HedenbergiteCaFe2+Si2O6
Siⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Siⓘ PyropeMg3Al2(SiO4)3
Siⓘ QuartzSiO2
Siⓘ SpessartineMn32+Al2(SiO4)3
Siⓘ TalcMg3Si4O10(OH)2
Siⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Siⓘ WollastoniteCa3(Si3O9)
Siⓘ Pyroxene GroupADSi2O6
Siⓘ Garnet GroupX3Z2(SiO4)3
Siⓘ Serpentine SubgroupD3[Si2O5](OH)4
Siⓘ Olivine GroupM2SiO4
SSulfur
Sⓘ ChalcopyriteCuFeS2
Sⓘ MolybdeniteMoS2
Sⓘ PyriteFeS2
Sⓘ PyrrhotiteFe1-xS
Sⓘ SphaleriteZnS
ClChlorine
Clⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
KPotassium
Kⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
CaCalcium
Caⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Caⓘ AndraditeCa3Fe23+(SiO4)3
Caⓘ CalciteCaCO3
Caⓘ DiopsideCaMgSi2O6
Caⓘ DolomiteCaMg(CO3)2
Caⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Caⓘ GrossularCa3Al2(SiO4)3
Caⓘ HedenbergiteCaFe2+Si2O6
Caⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Caⓘ WollastoniteCa3(Si3O9)
TiTitanium
Tiⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
MnManganese
Mnⓘ SpessartineMn32+Al2(SiO4)3
FeIron
Feⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Feⓘ AndraditeCa3Fe23+(SiO4)3
Feⓘ AlmandineFe32+Al2(SiO4)3
Feⓘ ChalcopyriteCuFeS2
Feⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Feⓘ HedenbergiteCaFe2+Si2O6
Feⓘ HematiteFe2O3
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ PyriteFeS2
Feⓘ PyrrhotiteFe1-xS
CuCopper
Cuⓘ ChalcopyriteCuFeS2
ZnZinc
Znⓘ SphaleriteZnS
MoMolybdenum
Moⓘ MolybdeniteMoS2

Other Regions, Features and Areas containing this locality

Amur PlateTectonic Plate
AsiaContinent
Korean PeninsulaPeninsula

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Lee, Jong Hyun; Seo, Jieun; Choi, Seon-Gyu; Oh, Chang Whan; Lee, Young Jae (2022) Different characteristics of barren and W–Mo–productive Cretaceous granites in the Hwanggangri mineralized district, South Korea. Ore Geology Reviews, 141. p.104645. doi:10.1016/j.oregeorev.2021.104645
[1]Kim, Ilkyu, Im, Heonkyung, Shin, Dongbok, Jo, Jaeguk (2025) Major and trace element geochemistry of garnets from the Geumseong Mo skarn deposit, South Korea: Genesis and exploration implications. Ore Geology Reviews, 178. 106504 doi:10.1016/j.oregeorev.2025.106504
Quick NavTopCommoditiesMineral ListRock TypesOther RegionsReferences
 
and/or  
Mindat.org® is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Mindat® and mindat.org® are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
Content on this site may not be used to train, fine-tune, or otherwise develop artificial intelligence or machine learning models without prior written permission - see our Terms & Conditions.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: September 5, 2026 00:13:24 Page updated: April 22, 2026 19:43:27
Go to top of page