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:
Justice Mine, Obuasi, Ashanti Gold Belt, Western Region, Ghana

Oldest recorded age at locality: 2157
Youngest recorded age at locality: 2091

mindat Locality ID: 301616
mindat URL: http://www.mindat.org/loc-301616.html

Tectonic Settings:

Total number of sublocalities beneath "Justice Mine, Obuasi, Ashanti Gold Belt, Western Region, Ghana": 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 Au Cu Fe H O S Si Zn 

Elements from minerals reported directly at this locality: As Au Cu Fe H O S Si Zn 

Structural Groups for minerals in this locality: 
ArsenoliteArsenopyriteChalcopyriteCopperCorundumDiasporeNickelineNoneNot in a structural groupPyrite
QuartzSphalerite

13 IMA Minerals at location:
Arsenolite  (*)Arsenopyrite  (*)Bornite  (*)Chalcopyrite  (*)Cuprite  (*)
Goethite  (*)Gold  (*)Hematite  (*)Pyrite  (*)Pyrrhotite  (*)
Quartz  (*)Scorodite  (*)Sphalerite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Arsenolite  (*)ArsenoliteAs2O3215720910231
Arsenopyrite  (*)ArsenopyriteFeAsS2157209109052
Bornite  (*)NoneCu5FeS42157209105516
Chalcopyrite  (*)ChalcopyriteCuFeS221572091027198
Cuprite  (*)Not in a structural groupCu2O2157209102970
Goethite  (*)DiasporeFeO(OH)2157209107437
Gold  (*)CopperAu21572153030554
Hematite  (*)CorundumFe2O321572091014640
Pyrite  (*)PyriteFeS221572091039462
Pyrrhotite  (*)NickelineFe7S82157209109056
Quartz  (*)QuartzSiO221572091061156
Scorodite  (*)NoneFe3+(AsO4)·2H2O2157209101153
Sphalerite  (*)SphaleriteZnS21572091021482



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
PR89_129-1215721532155±2207Pb/206Pb highzircon20 YesZirconGoldAu192427Ashanti Gold Belt, Western Region, GhanaAshanti belt, GhanaOberthür et al. (1998)10.1016/S0301-9268(97)00075-2PR89_129Fig. 4
PR89_129-2210520912098±7Pb/Pb rutileGH789 YesRutileGoldAu192427Ashanti Gold Belt, Western Region, GhanaAshanti belt, GhanaOberthür et al. (1998)10.1016/S0301-9268(97)00075-3PR89_130Fig. 8


SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

All age data...

Other copyright data...