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:
Mohawk Mine, Mohawk, Keweenaw Co., Michigan, USA

Oldest recorded age at locality: 1060
Youngest recorded age at locality: 1047

mindat Locality ID: 3851
mindat URL: http://www.mindat.org/loc-3851.html

Tectonic Settings:

Total number of sublocalities beneath "Mohawk Mine, Mohawk, Keweenaw Co., Michigan, USA": 3
Total number of bottom-level sublocalities: 3

Number of Child Localities: 3
Child Localities:
Mohawk No. 2 Shaft
Mohawk No. 5 Shaft
Mohawk No. 6 Shaft

Latitude: 47°17'40"N
Longitude: 88°22'34"W
Decimal Degree (lat, lon): 47.294444444444,-88.376111111111
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: Ag Al As B C Ca Cl Co Cu Fe H K Mg Mo Na Ni O S Si Zn 

Elements from minerals reported directly at this locality: Ag Al As C Ca Cl Co Cu Fe H K Mg Mo Na Ni O S Si 

Structural Groups for minerals in this locality: 
AllophaneAnalcimeAndalusiteArsenopyriteAtacamiteCalciteClinozoisiteCopperCorundumDomeykite
EpidoteFeldsparGadoliniteGypsumHureauliteLöllingiteNatroliteNickelineNolaniteNone
Not in a structural groupPerovskitePrehniteQuartzSkutteruditeTyroliteVivianite

43 IMA Minerals at location:
Algodonite  (*)Analcime  (*)Ankerite  (*)Annabergite  (*)Azurite  (*)
Calcite  (*)Chalcocite  (*)Chrysocolla  (*)Copper  (*)Cuprite  (*)
Datolite  (*)Dolomite  (*)Domeykite  (*)Epidote  (*)Erythrite  (*)
Guérinite  (*)Gypsum  (*)Hematite  (*)Jeankempite  (*)Kamiokite  (*)
Koutekite  (*)Laumontite  (*)Lavendulan  (*)Maucherite  (*)Microcline  (*)
Natrolite  (*)Nickeline  (*)Nickelskutterudite  (*)Olivenite  (*)Pararammelsbergite  (*)
Paratacamite  (*)Paxite  (*)Pharmacolite  (*)Picropharmacolite  (*)Prehnite  (*)
Quartz  (*)Rammelsbergite  (*)Rauenthalite  (*)Sainfeldite  (*)Silver  (*)
Skutterudite  (*)Tyrolite  (*)Vladimirite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Algodonite  (*)Not in a structural groupCu1-xAsx (x ≈ 0.15)10601047041
Analcime  (*)AnalcimeNa(AlSi2O6)·H2O1060104712219351627
Ankerite  (*)NoneCa(Fe2+,Mg)(CO3)21060104703092
Annabergite  (*)VivianiteNi3(AsO4)2·8H2O106010471221935445
Azurite  (*)Not in a structural groupCu3(CO3)2(OH)21060104705509
Calcite  (*)CalciteCa(CO3)10601047122193627770
Chalcocite  (*)NoneCu2S1060104705707
Chrysocolla  (*)Allophane(Cu2-xAlx)H2-xSi2O5(OH)4·nH2O1060104703531
Copper  (*)CopperCu106010473221935,221936,2219373846
Cuprite  (*)Not in a structural groupCu2O1060104702970
Datolite  (*)GadoliniteCaB(SiO4)(OH)106010471221936498
Dolomite  (*)NoneCaMg(CO3)21060104709895
Domeykite  (*)DomeykiteCu3As10601047073
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)1060104708173
Erythrite  (*)VivianiteCo3(AsO4)2·8H2O106010470814
Guérinite  (*)NoneCa5(AsO3OH)2(AsO4)2·9H2O10601047031
Gypsum  (*)GypsumCa(SO4)·2H2O1060104706890
Hematite  (*)CorundumFe2O310601047122193514640
Jeankempite  (*)NoneCa5(AsO4)2(AsO3OH)2(H2O)71060104701
Kamiokite  (*)NolaniteFe2+2Mo4+3O81060104708
Koutekite  (*)NoneCu5As210601047018
Laumontite  (*)Not in a structural groupCaAl2Si4O12·4H2O1060104701271
Lavendulan  (*)NoneNaCaCu5(AsO4)4Cl·5H2O106010470149
Maucherite  (*)NoneNi11As8106010470161
Microcline  (*)FeldsparK(AlSi3O8)1060104704924
Natrolite  (*)NatroliteNa2(Si3Al2)O10·2H2O1060104701236
Nickeline  (*)NickelineNiAs106010470633
Nickelskutterudite  (*)Skutterudite Perovskite(Ni,Co,Fe)As3106010471221935176
Olivenite  (*)AndalusiteCu2(AsO4)(OH)106010470492
Pararammelsbergite  (*)LöllingiteNiAs210601047052
Paratacamite  (*)AtacamiteCu3(Cu,Zn)Cl2(OH)6106010471221937158
Paxite  (*)ArsenopyriteCuAs21060104703
Pharmacolite  (*)GypsumCa(AsO3OH)·2H2O106010470105
Picropharmacolite  (*)NoneCa4Mg(AsO3OH)2(AsO4)2·11H2O10601047099
Prehnite  (*)PrehniteCa2Al(Si3Al)O10(OH)21060104701898
Quartz  (*)QuartzSiO2106010472221936,22193761156
Rammelsbergite  (*)LöllingiteNiAs2106010470233
Rauenthalite  (*)NoneCa3(AsO4)2·10H2O10601047023
Sainfeldite  (*)HureauliteCa5(AsO4)2(AsO3OH)2·4H2O10601047028
Silver  (*)CopperAg1060104705186
Skutterudite  (*)Skutterudite PerovskiteCoAs3106010470531
Tyrolite  (*)TyroliteCa2Cu9(AsO4)4(CO3)(OH)8·11H2O106010470245
Vladimirite  (*)NoneCa4(AsO4)2(AsO3OH)·4H2O10601047015


1 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-0005710601047 Rb-Sr    YesKamiokiteMo3847Keweenaw Co., Michigan, USA Bornhorst et al. (1988)10.2113/gsecongeo.83.3.619EG83_619 

SampleSource LocalityReference URL

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