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:
Tarkwa Mine, Tarkwa, Ashanti Gold Belt, Western Region, Ghana

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

mindat Locality ID: 25020
mindat URL: http://www.mindat.org/loc-25020.html

Tectonic Settings:

Total number of sublocalities beneath "Tarkwa Mine, Tarkwa, Ashanti Gold Belt, Western Region, Ghana": 0
Total number of bottom-level sublocalities: 0

Latitude: 5°17'9"N
Longitude: 2°2'27"W
Decimal Degree (lat, lon): 5.2858333333333,-2.0408333333333
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: Al Au C Ca Cr Cu Fe H K O S Si Ti Zn Zr 

Elements from minerals reported directly at this locality: Al Au C Ca Cr Cu Fe H K O S Si Ti Zn Zr 

Structural Groups for minerals in this locality: 
ChalcopyriteChloritoidClayClinozoisiteCopperCorundumDiamondEpidoteMarcasiteMica
NickelineNonePyriteQuartzRutileSpinelStauroliteZircon

19 IMA Minerals at location:
Bornite  (*)Chalcopyrite  (*)Chloritoid  (*)Chromite  (*)Diamond  (*)
Epidote  (*)Gold  (*)Hematite  (*)Ilmenite  (*)Magnetite  (*)
Marcasite  (*)Muscovite  (*)Pyrite  (*)Pyrrhotite  (*)Quartz  (*)
Rutile  (*)Staurolite  (*)Zincochromite  (*)Zircon  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Bornite  (*)NoneCu5FeS42157209105516
Chalcopyrite  (*)ChalcopyriteCuFeS221572091027198
Chloritoid  (*)ChloritoidFe2+Al2O(SiO4)(OH)2215720910376
Chromite  (*)SpinelFe2+Cr2O42157209103902
Diamond  (*)DiamondC215720910697
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)2157209108173
Gold  (*)CopperAu21572153030554
Hematite  (*)CorundumFe2O321572091014640
Ilmenite  (*)CorundumFe2+Ti4+O32157209105433
Magnetite  (*)SpinelFe2+Fe3+2O421572091014899
Marcasite  (*)MarcasiteFeS22157209105674
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)221572091017380
Pyrite  (*)PyriteFeS221572091039462
Pyrrhotite  (*)NickelineFe7S82157209109056
Quartz  (*)QuartzSiO221572091061156
Rutile  (*)RutileTiO22105209105614
Staurolite  (*)StauroliteFe2+2Al9Si4O23(OH)215720910978
Zincochromite  (*)SpinelZnCr2O421572091011
Zircon  (*)ZirconZr(SiO4)2157215305251


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

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