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:
Petersburg Borough, Alaska, USA


mindat Locality ID: 310025
mindat URL: http://www.mindat.org/loc-310025.html

Tectonic Settings:

Total number of sublocalities beneath "Petersburg Borough, Alaska, USA": 59
Total number of bottom-level sublocalities: 56

Number of Child Localities: 3
Child Localities:
Kupreanof District
Kupreanof Island
Mitkof Island

Latitude: 56°40'51"N
Longitude: 133°27'33"W
Decimal Degree (lat, lon): 56.680833333333,-133.45916666667

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 As Au Ba C Ca Cr Cu F Fe H K Mg Mo Na Ni O P Pb S Sb Si Zn 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
ApatiteAragoniteArsenopyriteBaryteCalciteChalcopyriteClinozoisiteCopperEpidoteGarnet
MolybdeniteMordeniteNickelineNoneNot in a structural groupPentlanditePyriteQuartzRocksaltSphalerite
SpinelStilbiteTetrahedrite

29 IMA Minerals at location:
Almandine  (*)Arsenopyrite  (*)Barrerite  (*)Baryte  (*)Bornite  (*)
Calcite  (*)Cerussite  (*)Chalcopyrite  (*)Chromite  (*)Dolomite  (*)
Epidote  (*)Epistilbite  (*)Fluorapatite  (*)Galena  (*)Gold  (*)
Hydrozincite  (*)Laumontite  (*)Magnetite  (*)Molybdenite  (*)Mordenite  (*)
Pentlandite  (*)Pyrite  (*)Pyrrhotite  (*)Quartz  (*)Smithsonite  (*)
Sphalerite  (*)Stilbite-Na  (*)Tetrahedrite-(Zn)  (*)Witherite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Almandine  (*)GarnetFe2+3Al2(SiO4)311327942353
Arsenopyrite  (*)ArsenopyriteFeAsS4132741,132764,132771,1327879052
Barrerite  (*)StilbiteNa2(Si7Al2)O18·6H2O113279023
Baryte  (*)BaryteBa(SO4)10132737,132738,132743,132753,132756,132758,132765,132776,132778,13278711547
Bornite  (*)NoneCu5FeS411327515516
Calcite  (*)CalciteCa(CO3)11132743,132751,132758,132759,132760,132762,132763,132765,132766,132770,13279227770
Cerussite  (*)AragonitePb(CO3)11327634979
Chalcopyrite  (*)ChalcopyriteCuFeS217132740,132746,132747,132750,132751,132753,132754,132757,132758,132760,132762,132766,132770,132771,132773,132785,13278727198
Chromite  (*)SpinelFe2+Cr2O411327733902
Dolomite  (*)NoneCaMg(CO3)211327609895
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)11327668173
Epistilbite  (*)MordeniteCa3[Si18Al6O48]·16H2O1132792138
Fluorapatite  (*)ApatiteCa5(PO4)3F11327682740
Galena  (*)RocksaltPbS18132740,132741,132743,132745,132747,132753,132754,132755,132756,132758,132759,132760,132763,132767,132771,132776,132784,13278724243
Gold  (*)CopperAu4132741,132744,132747,13276430554
Hydrozincite  (*)NoneZn5(CO3)2(OH)611327631066
Laumontite  (*)Not in a structural groupCaAl2Si4O12·4H2O11327921271
Magnetite  (*)SpinelFe2+Fe3+2O43132750,132762,13277314899
Molybdenite  (*)MolybdeniteMoS211327715800
Mordenite  (*)Mordenite(Na2,Ca,K2)4(Al8Si40)O96·28H2O2132791,132792405
Pentlandite  (*)Pentlandite(Ni,Fe)9S811327731512
Pyrite  (*)PyriteFeS229132740,132746,132747,132749,132750,132751,132752,132753,132754,132755,132756,132757,132758,132759,132760,132761,132762,132764,132766,132767,132769,132770,132771,132776,132777,132783,132784,132785,13278639462
Pyrrhotite  (*)NickelineFe7S87132750,132753,132757,132766,132771,132773,1327879056
Quartz  (*)QuartzSiO218132740,132741,132742,132743,132744,132747,132748,132751,132752,132755,132759,132764,132766,132767,132771,132787,132791,13279261156
Smithsonite  (*)CalciteZn(CO3)11327632473
Sphalerite  (*)SphaleriteZnS24132740,132741,132743,132745,132746,132747,132750,132754,132755,132756,132758,132759,132760,132762,132763,132767,132769,132770,132771,132776,132777,132784,132787,13278921482
Stilbite-Na  (*)StilbiteNa9(Si27Al9)O72·28H2O113279215
Tetrahedrite-(Zn)  (*)TetrahedriteCu6(Cu4Zn2)Sb4S1311327635317
Witherite  (*)AragoniteBa(CO3)2132765,132776251



No ages have been assigned to this locality yet.

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All locality data graciously provided by mindat.org

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