Mineral Evolution Database
Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.
Mineral locality data provided by mindat.org



The Mineral Evolution database is currently under development.

The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.


Locality Name:
Ohkawame Mine (Okawame Mine), Kuji City, Iwate, Japan

Oldest recorded age at locality: 133.6
Youngest recorded age at locality: 112

mindat Locality ID: 106920
mindat URL: http://www.mindat.org/loc-106920.html

Tectonic Settings:

Total number of sublocalities beneath "Ohkawame Mine (Okawame Mine), Kuji City, Iwate, Japan": 0
Total number of bottom-level sublocalities: 0

Latitude: 0°0'0"N
Longitude: 0°0'0"E
Decimal Degree (lat, lon): 0,0
AThis mineral is Anthropogenic.
GThis mineral is directly dated.
BThis mineral is reported as having this age.
YThis mineral is using an age reported as an element mineralization period.
OThis mineral is using an age calculated from all data at the locality.
RThe age displayed for this mineral originates from a different, non-child locality.
PThe age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
This mineral's age has not yet been recorded.

This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.

Elements at this locality, including sub-localities: As Bi C Ca Co Cu Fe Mo Ni O S Si Te Ti W Zn 

Elements from minerals reported directly at this locality: As Bi C Ca Co Cu Fe Mo Ni O S Si Te Ti W Zn 

Structural Groups for minerals in this locality: 
CalciteChalcopyriteLöllingiteMolybdeniteNickelineNonePentlanditePyritePyroxeneQuartz
ScheeliteSphaleriteSpinelTetradymiteTitaniteWollastonite

18 IMA Minerals at location:
Calcite  (*)Chalcopyrite  (*)Ferrobustamite  (*)Graphite  (*)Hedenbergite  (*)
Joséite-B  (*)Molybdenite  (*)Nickeline  (*)Pentlandite  (*)Pyrite  (*)
Pyrrhotite  (*)Quartz  (*)Safflorite  (*)Scheelite  (*)Sphalerite  (*)
Titanite  (*)Violarite  (*)Wollastonite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Calcite  (*)CalciteCa(CO3)133.6112027770
Chalcopyrite  (*)ChalcopyriteCuFeS2133.6112027198
Ferrobustamite  (*)WollastoniteCaFe2+Si2O6133.6112022
Graphite  (*)NoneC133.611202812
Hedenbergite  (*)PyroxeneCaFe2+Si2O6133.61120741
Joséite-B  (*)TetradymiteBi4Te2S133.6112086
Molybdenite  (*)MolybdeniteMoS2133.611205800
Nickeline  (*)NickelineNiAs133.61120633
Pentlandite  (*)Pentlandite(Ni,Fe)9S8133.611201512
Pyrite  (*)PyriteFeS2133.6112039462
Pyrrhotite  (*)NickelineFe7S8133.611209056
Quartz  (*)QuartzSiO2133.6112061156
Safflorite  (*)LöllingiteCoAs2133.61120317
Scheelite  (*)ScheeliteCa(WO4)133.611204894
Sphalerite  (*)SphaleriteZnS133.6112021482
Titanite  (*)TitaniteCaTi(SiO4)O133.611204899
Violarite  (*)SpinelFeNi2S4133.61120380
Wollastonite  (*)WollastoniteCaSiO3133.611201247


2 Ages assigned to this locality:

Excel IDMax Age (Ma)Min Age (Ma)Age as listed in referenceDating MethodAge InterpretPrioritized?Sample SourceSample NumRun NumAge from other LocalityDated MineralMinerals explicitely stated as having this ageAge applies to these ElementsMinDat Locality IDDated Locality (Max Age)Location as listed in referenceReferenceReference DOIReference IDAge Notes
Mo-00294133.6122.4128.0±5.6Re-Os molybdeniteOkawame (Ok)  Molybdenite Mo106920Ohkawame Mine (Okawame Mine), Kuji City, Iwate, JapanKuji, lwateSuzuki et al. (1996)10.1016/0016-7037(96)00164-0GCA60_3151 
Mo-00295119.8112115.9±3.9Re-Os molybdeniteOkawame (Ok)  Molybdenite Mo106920Ohkawame Mine (Okawame Mine), Kuji City, Iwate, JapanKuji, lwateSuzuki et al. (1996)10.1016/0016-7037(96)00164-0GCA60_3151 

All locality data graciously provided by mindat.org

All age data...

Other copyright data...