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Ohkawame mine (Okawame mine), Kuji City, Iwate Prefecture, Japani
Regional Level Types
Ohkawame mine (Okawame mine)Mine
Kuji CityCity
Iwate PrefecturePrefecture
JapanCountry

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Latitude & Longitude (WGS84):
40ยฐ North , 141ยฐ East (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~32km
GRN:
N27E79
Type:
Mine
Kรถppen climate type:
Cfb : Temperate oceanic climate
Mindat Locality ID:
106920
Long-form identifier:
mindat:1:2:106920:7
GUID (UUID V4):
0


Molybdenum mineralization (mainly molybdenite) in skarn, mined in 1943-1948 and 1963-1965; now closed. During the first period (1943-1948) produced 61,000 tons crude ore, with 0.4 to 0.7% molybdenite. Includes the Inari, Iwai, and Tengu orebodies.
Ref: D Ishiyama, T Fuchino, K Kaneko, T Mizuta and O Fujikawa (2000) Tungsten mineralization of the Ohkawame molybdenite deposit in Kuji city, Iwate prefecture, Japan. Journal of the Mining College, Akita University, Ser. A, VIII, #3, 105-127.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Detailed Mineral List:

โ“˜ 'Amphibole Supergroup'
Formula: AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
โ“˜ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
โ“˜ Calcite
Formula: CaCO3
โ“˜ Chalcopyrite
Formula: CuFeS2
โ“˜ 'Clinopyroxene Subgroup'
โ“˜ Ferrobustamite
Formula: CaFe2+(Si2O6)
โ“˜ 'Garnet Group'
Formula: X3Z2(SiO4)3
โ“˜ Graphite
Formula: C
โ“˜ Hedenbergite
Formula: CaFe2+Si2O6
โ“˜ Josรฉite-B
Formula: Bi4Te2S
โ“˜ Molybdenite
Formula: MoS2
โ“˜ Nickeline
Formula: NiAs
โ“˜ Pentlandite
Formula: (NixFey)ฮฃ9S8
โ“˜ 'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
โ“˜ Pyrite
Formula: FeS2
โ“˜ Pyrrhotite
Formula: Fe1-xS
โ“˜ Quartz
Formula: SiO2
โ“˜ Safflorite
Formula: (Co,Ni,Fe)As2
โ“˜ Scheelite
Formula: Ca(WO4)
โ“˜ Sphalerite
Formula: ZnS
โ“˜ Titanite
Formula: CaTi(SiO4)O
โ“˜ Violarite
Formula: Fe2+Ni3+2S4
โ“˜ Wollastonite
Formula: Ca3(Si3O9)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
โ“˜Graphite1.CB.05aC
Group 2 - Sulphides and Sulfosalts
โ“˜Pentlandite2.BB.15(NixFey)ฮฃ9S8
โ“˜Sphalerite2.CB.05aZnS
โ“˜Chalcopyrite2.CB.10aCuFeS2
โ“˜Nickeline2.CC.05NiAs
โ“˜Pyrrhotite2.CC.10Fe1-xS
โ“˜Violarite2.DA.05Fe2+Ni3+2S4
โ“˜Josรฉite-B2.DC.05Bi4Te2S
โ“˜Molybdenite2.EA.30MoS2
โ“˜Pyrite2.EB.05aFeS2
โ“˜Safflorite2.EB.15a(Co,Ni,Fe)As2
Group 4 - Oxides and Hydroxides
โ“˜Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
โ“˜Calcite5.AB.05CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
โ“˜Scheelite7.GA.05Ca(WO4)
Group 9 - Silicates
โ“˜Titanite9.AG.15CaTi(SiO4)O
โ“˜Hedenbergite9.DA.15CaFe2+Si2O6
โ“˜Ferrobustamite9.DG.05CaFe2+(Si2O6)
โ“˜Wollastonite9.DG.05Ca3(Si3O9)
Unclassified
โ“˜'Amphibole Supergroup'-AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
โ“˜'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
โ“˜'Clinopyroxene Subgroup'-
โ“˜'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
โ“˜'Garnet Group'-X3Z2(SiO4)3

List of minerals for each chemical element

HHydrogen
Hโ“˜ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Hโ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
CCarbon
Cโ“˜ CalciteCaCO3
Cโ“˜ GraphiteC
OOxygen
Oโ“˜ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Oโ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oโ“˜ CalciteCaCO3
Oโ“˜ FerrobustamiteCaFe2+(Si2O6)
Oโ“˜ HedenbergiteCaFe2+Si2O6
Oโ“˜ QuartzSiO2
Oโ“˜ ScheeliteCa(WO4)
Oโ“˜ TitaniteCaTi(SiO4)O
Oโ“˜ WollastoniteCa3(Si3O9)
Oโ“˜ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Oโ“˜ Garnet GroupX3Z2(SiO4)3
FFluorine
Fโ“˜ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Fโ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
NaSodium
Naโ“˜ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
Mgโ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
AlAluminium
Alโ“˜ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Alโ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alโ“˜ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
Siโ“˜ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Siโ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siโ“˜ FerrobustamiteCaFe2+(Si2O6)
Siโ“˜ HedenbergiteCaFe2+Si2O6
Siโ“˜ QuartzSiO2
Siโ“˜ TitaniteCaTi(SiO4)O
Siโ“˜ WollastoniteCa3(Si3O9)
Siโ“˜ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Siโ“˜ Garnet GroupX3Z2(SiO4)3
SSulfur
Sโ“˜ ChalcopyriteCuFeS2
Sโ“˜ Josรฉite-BBi4Te2S
Sโ“˜ MolybdeniteMoS2
Sโ“˜ Pentlandite(NixFey)ฮฃ9S8
Sโ“˜ PyriteFeS2
Sโ“˜ PyrrhotiteFe1-xS
Sโ“˜ SphaleriteZnS
Sโ“˜ ViolariteFe2+Ni23+S4
ClChlorine
Clโ“˜ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
KPotassium
Kโ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
CaCalcium
Caโ“˜ CalciteCaCO3
Caโ“˜ FerrobustamiteCaFe2+(Si2O6)
Caโ“˜ HedenbergiteCaFe2+Si2O6
Caโ“˜ ScheeliteCa(WO4)
Caโ“˜ TitaniteCaTi(SiO4)O
Caโ“˜ WollastoniteCa3(Si3O9)
Caโ“˜ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
TiTitanium
Tiโ“˜ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Tiโ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Tiโ“˜ TitaniteCaTi(SiO4)O
FeIron
Feโ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feโ“˜ ChalcopyriteCuFeS2
Feโ“˜ FerrobustamiteCaFe2+(Si2O6)
Feโ“˜ HedenbergiteCaFe2+Si2O6
Feโ“˜ Pentlandite(NixFey)ฮฃ9S8
Feโ“˜ PyriteFeS2
Feโ“˜ PyrrhotiteFe1-xS
Feโ“˜ Safflorite(Co,Ni,Fe)As2
Feโ“˜ ViolariteFe2+Ni23+S4
CoCobalt
Coโ“˜ Safflorite(Co,Ni,Fe)As2
NiNickel
Niโ“˜ NickelineNiAs
Niโ“˜ Pentlandite(NixFey)ฮฃ9S8
Niโ“˜ Safflorite(Co,Ni,Fe)As2
Niโ“˜ ViolariteFe2+Ni23+S4
CuCopper
Cuโ“˜ ChalcopyriteCuFeS2
ZnZinc
Znโ“˜ SphaleriteZnS
AsArsenic
Asโ“˜ NickelineNiAs
Asโ“˜ Safflorite(Co,Ni,Fe)As2
MoMolybdenum
Moโ“˜ MolybdeniteMoS2
TeTellurium
Teโ“˜ Josรฉite-BBi4Te2S
WTungsten
Wโ“˜ ScheeliteCa(WO4)
BiBismuth
Biโ“˜ Josรฉite-BBi4Te2S

Geochronology

Mineralization age: Early/Lower Cretaceous : 133.6 Ma to 112 Ma

Important note: This table is based only on rock and mineral ages recorded on mindat.org for this locality and is not necessarily a complete representation of the geochronology, but does give an indication of possible mineralization events relevant to this locality. As more age information is added this table may expand in the future. A break in the table simply indicates a lack of data entered here, not necessarily a break in the geologic sequence. Grey background entries are from different, related, localities.

Geologic TimeRocks, Minerals and Events
Phanerozoic
ย Mesozoic
ย ย Cretaceous
ย ย ย Early/Lower Cretaceous
โ“˜ Molybdenite (youngest age)112 Ma
โ“˜ Molybdenite (oldest age)133.6 Ma

Other Regions, Features and Areas containing this locality

AsiaContinent
Eurasian Plate
Okhotsk PlateTectonic Plate

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.

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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), 833โ€“844. doi:10.2138/am-2024-9486.
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