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:
Bear Gulch, Tidal Wave Mining District, Madison Co., Montana, USA

Oldest recorded age at locality: 70
Youngest recorded age at locality: 70

mindat Locality ID: 225127
mindat URL: http://www.mindat.org/loc-225127.html

Tectonic Settings:

Total number of sublocalities beneath "Bear Gulch, Tidal Wave Mining District, Madison Co., Montana, USA": 5
Total number of bottom-level sublocalities: 5

Number of Child Localities: 5
Child Localities:
Atlantic Claim
Blue Jay - Jay Gould Claims
Johnston - Moffet Copper (Mountain View)
Pritchett Mine
Royal Bear Claim (Aurora; Peter Claims)

Latitude: 45°36'11"N
Longitude: 112°11'15"W
Decimal Degree (lat, lon): 45.603055555556,-112.1875

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 Ba C Ca Cu Fe H Mg O Pb S Sb Si Ti Zn 

Elements from minerals reported directly at this locality: Al Ca H O Si Ti 

Structural Groups for minerals in this locality: 
AllophaneAragoniteBaryteCalciteChalcopyriteClinozoisiteCopperCorundumEpidoteMalachite
NoneNot in a structural groupPyritePyroxeneQuartzRocksaltSphaleriteSpinelTetrahedriteTitanite

25 IMA Minerals at location:
Azurite  (*)Baryte  (*)Bornite  (*)Calcite  (*)Cerussite  (*)
Chalcocite  (*)Chalcopyrite  (*)Chrysocolla  (*)Copper  (*)Corundum  (*)
Cuprite  (*)Diopside  (*)Epidote  (*)Galena  (*)Gold  (*)
Magnetite  (*)Malachite  (*)Pyrite  (*)Quartz  (*)Siderite  (*)
Sphalerite  (*)Tenorite  (*)Tetrahedrite-(Zn)  (*)Titanite  (*)Zoisite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Azurite  (*)Not in a structural groupCu3(CO3)2(OH)2707012315365509
Baryte  (*)BaryteBa(SO4)7070123153511547
Bornite  (*)NoneCu5FeS470702231535,2315365516
Calcite  (*)CalciteCa(CO3)7070123153527770
Cerussite  (*)AragonitePb(CO3)707012315384979
Chalcocite  (*)NoneCu2S707012315365707
Chalcopyrite  (*)ChalcopyriteCuFeS270703231535,231536,23153827198
Chrysocolla  (*)Allophane(Cu2-xAlx)H2-xSi2O5(OH)4·nH2O707012315363531
Copper  (*)CopperCu707012315363846
Corundum  (*)CorundumAl2O3707012315341797
Cuprite  (*)Not in a structural groupCu2O707012315362970
Diopside  (*)PyroxeneCaMgSi2O6707012315364135
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)70702231534,2315368173
Galena  (*)RocksaltPbS70702231537,23153824243
Gold  (*)CopperAu7070123153530554
Magnetite  (*)SpinelFe2+Fe3+2O47070123153614899
Malachite  (*)MalachiteCu2(CO3)(OH)27070123153612537
Pyrite  (*)PyriteFeS270704231535,231536,231537,23153839462
Quartz  (*)QuartzSiO27070123153561156
Siderite  (*)CalciteFe(CO3)707012315356417
Sphalerite  (*)SphaleriteZnS7070123153821482
Tenorite  (*)NoneCuO707012315361101
Tetrahedrite-(Zn)  (*)TetrahedriteCu6(Cu4Zn2)Sb4S13707012315355317
Titanite  (*)TitaniteCaTi(SiO4)O707004899
Zoisite  (*)EpidoteCa2Al3[Si2O7][SiO4]O(OH)707001025



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-001867070      YesMolybdenite, Powellite, WulfeniteMo23236Madison Co., Montana, USAMadison CountyGammons et al. (2006)10.1007/s10230-006-0113-7MWE25_70 


SampleSource LocalityReference URL


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