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:
Siscoe Mine (Miller Lake O'Brien Mine; O'Brien Mine), Nicol Township, Gowganda Area, Cobalt-Gowganda Region, Timiskaming District, Ontario, Canada

Oldest recorded age at locality: 2222.9
Youngest recorded age at locality: 2215.9

mindat Locality ID: 23120
mindat URL: http://www.mindat.org/loc-23120.html

Tectonic Settings: Continental Arc

Total number of sublocalities beneath "Siscoe Mine (Miller Lake O'Brien Mine; O'Brien Mine), Nicol Township, Gowganda Area, Cobalt-Gowganda Region, Timiskaming District, Ontario, Canada": 0
Total number of bottom-level sublocalities: 0

Latitude: 47°39'57"N
Longitude: 80°44'17"W
Decimal Degree (lat, lon): 47.665833333333,-80.738055555556
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 Bi C Ca Ce Co Cu Fe H La Mg Ni O Pb S Sb Si Zn 

Elements from minerals reported directly at this locality: Ag Al As Bi C Ca Ce Co Cu Fe H Mg Ni O Pb S Sb Si Zn 

Structural Groups for minerals in this locality: 
AcanthiteAmphiboleArsenopyriteCalciteCeriteChalcopyriteCopperKobelliteLöllingiteMillerite
NickelineNonePerovskitePolybasitePrehnitePyriteQuartzRocksaltSkutteruditeSphalerite
VivianiteXanthoconite

29 IMA Minerals at location:
Acanthite  (*)Actinolite  (*)Alloclasite  (*)Annabergite  (*)Arsenopyrite  (*)
Bornite  (*)Calcite  (*)Cerite-(Ce)  (*)Chalcocite  (*)Chalcopyrite  (*)
Galena  (*)Galenobismutite  (*)Millerite  (*)Nickeline  (*)Pearceite  (*)
Polybasite  (*)Prehnite  (*)Proustite  (*)Pyrargyrite  (*)Pyrite  (*)
Quartz  (*)Rammelsbergite  (*)Safflorite  (*)Silver  (*)Skutterudite  (*)
Sphalerite  (*)Stephanite  (*)Stromeyerite  (*)Xanthoconite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Acanthite  (*)AcanthiteAg2S2222.92215.902793
Actinolite  (*)Amphibole   Ca2(Mg4.5-2.5Fe2+0.5-2.5)Si8O22(OH)22222.92215.903419
Alloclasite  (*)LöllingiteCoAsS2222.92215.9056
Annabergite  (*)VivianiteNi3(AsO4)2·8H2O2222.92215.90445
Arsenopyrite  (*)ArsenopyriteFeAsS2222.92215.909052
Bornite  (*)NoneCu5FeS42222.92215.905516
Calcite  (*)CalciteCa(CO3)2222.92215.9027770
Cerite-(Ce)  (*)Cerite(Ce7Ca2)   Mg(SiO4)3(SiO3OH)4(OH)32222.92215.9047
Chalcocite  (*)NoneCu2S2222.92215.905707
Chalcopyrite  (*)ChalcopyriteCuFeS22222.92215.9027198
Galena  (*)RocksaltPbS2222.92215.9024243
Galenobismutite  (*)KobellitePbBi2S42222.92215.90192
Millerite  (*)MilleriteNiS2222.92215.901066
Nickeline  (*)NickelineNiAs2222.92215.90633
Pearceite  (*)Polybasite[Ag9CuS4][(Ag,Cu)6(As,Sb)2S7]2222.92215.90249
Polybasite  (*)Polybasite[Ag9CuS4][(Ag,Cu)6(Sb,As)2S7]2222.92215.90716
Prehnite  (*)PrehniteCa2Al(Si3Al)O10(OH)22222.92215.901898
Proustite  (*)NoneAg3AsS32222.92215.90733
Pyrargyrite  (*)NoneAg3SbS32222.92215.901425
Pyrite  (*)PyriteFeS22222.92215.9039462
Quartz  (*)QuartzSiO22222.92215.9061156
Rammelsbergite  (*)LöllingiteNiAs22222.92215.90233
Safflorite  (*)LöllingiteCoAs22222.92215.90317
Silver  (*)CopperAg2222.92215.905186
Skutterudite  (*)Skutterudite PerovskiteCoAs32222.92215.90531
Sphalerite  (*)SphaleriteZnS2222.92215.9021482
Stephanite  (*)NoneAg5SbS42222.92215.90586
Stromeyerite  (*)NoneCuAgS2222.92215.90332
Xanthoconite  (*)XanthoconiteAg3AsS32222.92215.9089


3 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
Emily0005312217.52217.5 U-Pbage of vein mineralizationrutile  YesRutile  58159Cobalt-Gowganda Region, Timiskaming District, Ontario, CanadaCobalt-Gowganda regionMarshall and Watkinson (2000) 10.2113/0090081EMG9_81 
Emily00053222172217 U-Pbage of vein mineralizationrutile  YesRutile  58159Cobalt-Gowganda Region, Timiskaming District, Ontario, CanadaCobalt-Gowganda regionMarshall and Watkinson (2000) 10.2113/0090081EMG9_81 
Co-001142222.92215.92219.4 (+3.6/-3.5)U-Pb    Yes Co, Ni, As, Ag, Bi5830Castle Mine (Castle-Trethewey Mine), Haultain Township, Gowganda Area, Cobalt-Gowganda Region, Timiskaming District, Ontario, CanadaNipissing diabase, Castle mine, Gowganda, OntarioAndrews et al. (1986)10.1139/e86-144CJES_23_1507error is (+3.6/-3.5); age of Nipissing diabase, the Ni-Co-As-Ag-Bi veins are this age or younger

SampleSource LocalityReference URL

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