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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):
40° North , 141° East (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~32km
GRN:
N27E79
Locality type:
Mine
Köppen climate type:
Cfb : Temperate oceanic climate


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

Mineral List


18 valid minerals.

Detailed Mineral List:

ⓘ 'Amphibole Supergroup'
Formula: AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Reference: D Ishiyama, et al (2000) J. Min. Coll. Akita Univ., Ser. A, 3, no. 3, 105-127.
ⓘ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
Reference: D Ishiyama, et al (2000) J. Min. Coll. Akita Univ., Ser. A, 3, no. 3, 105-127.
ⓘ Calcite
Formula: CaCO3
Reference: D Ishiyama, et al (2000) J. Min. Coll. Akita Univ., Ser. A, 3, no. 3, 105-127.
ⓘ Chalcopyrite
Formula: CuFeS2
Reference: D Ishiyama, et al (2000) J. Min. Coll. Akita Univ., Ser. A, 3, no. 3, 105-127.
ⓘ 'Clinopyroxene Subgroup'
Reference: D Ishiyama, et al (2000) J. Min. Coll. Akita Univ., Ser. A, 3, no. 3, 105-127.
ⓘ Ferrobustamite
Formula: CaFe2+(Si2O6)
Reference: D Ishiyama, et al (2000) J. Min. Coll. Akita Univ., Ser. A, 3, no. 3, 105-127.
ⓘ 'Garnet Group'
Formula: X3Z2(SiO4)3
Reference: D Ishiyama, et al (2000) J. Min. Coll. Akita Univ., Ser. A, 3, no. 3, 105-127.
ⓘ Graphite
Formula: C
Reference: D Ishiyama, et al (2000) J. Min. Coll. Akita Univ., Ser. A, 3, no. 3, 105-127.
ⓘ Hedenbergite
Formula: CaFe2+Si2O6
Reference: Dr. Matsuo Nambu collection (curated at Geological Survey of Japan)
ⓘ Joséite-B
Formula: Bi4Te2S
Reference: D Ishiyama, et al (2000) J. Min. Coll. Akita Univ., Ser. A, 3, no. 3, 105-127.
ⓘ Molybdenite
Formula: MoS2
Reference: D Ishiyama, et al (2000) J. Min. Coll. Akita Univ., Ser. A, 3, no. 3, 105-127.
ⓘ Nickeline
Formula: NiAs
Reference: D Ishiyama, et al (2000) J. Min. Coll. Akita Univ., Ser. A, 3, no. 3, 105-127.
ⓘ Pentlandite
Formula: (NixFey)Σ9S8
Reference: D Ishiyama, et al (2000) J. Min. Coll. Akita Univ., Ser. A, 3, no. 3, 105-127.
ⓘ 'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
Reference: D Ishiyama, et al (2000) J. Min. Coll. Akita Univ., Ser. A, 3, no. 3, 105-127.
ⓘ Pyrite
Formula: FeS2
Reference: D Ishiyama, et al (2000) J. Min. Coll. Akita Univ., Ser. A, 3, no. 3, 105-127.
ⓘ Pyrrhotite
Formula: Fe1-xS
Reference: D Ishiyama, et al (2000) J. Min. Coll. Akita Univ., Ser. A, 3, no. 3, 105-127.
ⓘ Quartz
Formula: SiO2
Reference: D Ishiyama, et al (2000) J. Min. Coll. Akita Univ., Ser. A, 3, no. 3, 105-127.
ⓘ Safflorite
Formula: (Co,Ni,Fe)As2
Reference: D Ishiyama, et al (2000) J. Min. Coll. Akita Univ., Ser. A, 3, no. 3, 105-127.
ⓘ Scheelite
Formula: Ca(WO4)
Reference: D Ishiyama, et al (2000) J. Min. Coll. Akita Univ., Ser. A, 3, no. 3, 105-127.
ⓘ Sphalerite
Formula: ZnS
Reference: D Ishiyama, et al (2000) J. Min. Coll. Akita Univ., Ser. A, 3, no. 3, 105-127.
ⓘ Titanite
Formula: CaTi(SiO4)O
Reference: D Ishiyama, et al (2000) J. Min. Coll. Akita Univ., Ser. A, 3, no. 3, 105-127.
ⓘ Violarite
Formula: Fe2+Ni3+2S4
Reference: D Ishiyama, et al (2000) J. Min. Coll. Akita Univ., Ser. A, 3, no. 3, 105-127.
ⓘ Wollastonite
Formula: Ca3(Si3O9)
Reference: D Ishiyama, et al (2000) J. Min. Coll. Akita Univ., Ser. A, 3, no. 3, 105-127.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘGraphite1.CB.05aC
Group 2 - Sulphides and Sulfosalts
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘJoséite-B2.DC.05Bi4Te2S
ⓘMolybdenite2.EA.30MoS2
ⓘNickeline2.CC.05NiAs
ⓘPentlandite2.BB.15(NixFey)Σ9S8
ⓘPyrite2.EB.05aFeS2
ⓘPyrrhotite2.CC.10Fe1-xS
ⓘSafflorite2.EB.15a(Co,Ni,Fe)As2
ⓘSphalerite2.CB.05aZnS
ⓘViolarite2.DA.05Fe2+Ni3+2S4
Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘScheelite7.GA.05Ca(WO4)
Group 9 - Silicates
ⓘFerrobustamite9.DG.05CaFe2+(Si2O6)
ⓘHedenbergite9.DA.15CaFe2+Si2O6
ⓘTitanite9.AG.15CaTi(SiO4)O
ⓘWollastonite9.DG.05Ca3(Si3O9)
Unclassified Minerals, Rocks, etc.
ⓘ'Amphibole Supergroup'-AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
ⓘ'Clinopyroxene Subgroup'-
ⓘ'Garnet Group'-X3Z2(SiO4)3
ⓘ'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8

List of minerals for each chemical element

HHydrogen
Hⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
Hⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
CCarbon
Cⓘ CalciteCaCO3
Cⓘ GraphiteC
OOxygen
Oⓘ WollastoniteCa3(Si3O9)
Oⓘ FerrobustamiteCaFe2+(Si2O6)
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
Oⓘ CalciteCaCO3
Oⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Oⓘ Garnet GroupX3Z2(SiO4)3
Oⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Oⓘ QuartzSiO2
Oⓘ TitaniteCaTi(SiO4)O
Oⓘ ScheeliteCa(WO4)
Oⓘ HedenbergiteCaFe2+Si2O6
FFluorine
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
Fⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
NaSodium
Naⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
AlAluminium
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
Alⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Alⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
Siⓘ WollastoniteCa3(Si3O9)
Siⓘ FerrobustamiteCaFe2+(Si2O6)
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
Siⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Siⓘ Garnet GroupX3Z2(SiO4)3
Siⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Siⓘ QuartzSiO2
Siⓘ TitaniteCaTi(SiO4)O
Siⓘ HedenbergiteCaFe2+Si2O6
SSulfur
Sⓘ PyrrhotiteFe1-xS
Sⓘ PyriteFeS2
Sⓘ SphaleriteZnS
Sⓘ ChalcopyriteCuFeS2
Sⓘ MolybdeniteMoS2
Sⓘ Pentlandite(NixFey)Σ9S8
Sⓘ ViolariteFe2+Ni23+S4
Sⓘ Joséite-BBi4Te2S
ClChlorine
Clⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
KPotassium
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
CaCalcium
Caⓘ WollastoniteCa3(Si3O9)
Caⓘ FerrobustamiteCaFe2+(Si2O6)
Caⓘ CalciteCaCO3
Caⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Caⓘ TitaniteCaTi(SiO4)O
Caⓘ ScheeliteCa(WO4)
Caⓘ HedenbergiteCaFe2+Si2O6
TiTitanium
Tiⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
Tiⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Tiⓘ TitaniteCaTi(SiO4)O
FeIron
Feⓘ FerrobustamiteCaFe2+(Si2O6)
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
Feⓘ PyrrhotiteFe1-xS
Feⓘ PyriteFeS2
Feⓘ ChalcopyriteCuFeS2
Feⓘ Pentlandite(NixFey)Σ9S8
Feⓘ ViolariteFe2+Ni23+S4
Feⓘ Safflorite(Co,Ni,Fe)As2
Feⓘ HedenbergiteCaFe2+Si2O6
CoCobalt
Coⓘ Safflorite(Co,Ni,Fe)As2
NiNickel
Niⓘ Pentlandite(NixFey)Σ9S8
Niⓘ ViolariteFe2+Ni23+S4
Niⓘ NickelineNiAs
Niⓘ Safflorite(Co,Ni,Fe)As2
CuCopper
Cuⓘ ChalcopyriteCuFeS2
ZnZinc
Znⓘ SphaleriteZnS
AsArsenic
Asⓘ NickelineNiAs
Asⓘ Safflorite(Co,Ni,Fe)As2
MoMolybdenum
Moⓘ MolybdeniteMoS2
TeTellurium
Teⓘ Joséite-BBi4Te2S
WTungsten
Wⓘ ScheeliteCa(WO4)
BiBismuth
Biⓘ Joséite-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
 Mesozoic
  Cretaceous
   Early/Lower Cretaceous
ⓘ Molybdenite (youngest age)112 Ma
ⓘ Molybdenite (oldest age)133.6 Ma

Other Regions, Features and Areas containing this locality

AsiaContinent
Japan
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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