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:
Bradstreet, Somerset Co., Maine, USA

Oldest recorded age at locality: 443
Youngest recorded age at locality: 443

mindat Locality ID: 32174
mindat URL: http://www.mindat.org/loc-32174.html

Tectonic Settings:

Total number of sublocalities beneath "Bradstreet, Somerset Co., Maine, USA": 1
Total number of bottom-level sublocalities: 1

Number of Child Localities: 1
Child Localities:
Catheart Mountain Locality

Latitude: 45°32'8"N
Longitude: 70°13'"W
Decimal Degree (lat, lon): 45.535555555556,-70.216666666667

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 Ca Cu Fe H K Mo O S Si Sn Zn 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
ChalcopyriteClayClinozoisiteEpidoteKaoliniteMicaMolybdeniteNonePyriteQuartz
SphaleriteStannite

10 IMA Minerals at location:
Chalcocite  (*)Chalcopyrite  (*)Epidote  (*)Kaolinite  (*)Molybdenite  (*)
Muscovite  (*)Pyrite  (*)Quartz  (*)Sphalerite  (*)Stannite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Chalcocite  (*)NoneCu2S44344312179565707
Chalcopyrite  (*)ChalcopyriteCuFeS2443443121795627198
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)44344312179568173
Kaolinite  (*)Clay KaoliniteAl2Si2O5(OH)444344312179565591
Molybdenite  (*)MolybdeniteMoS244344312179565800
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2443443121795617380
Pyrite  (*)PyriteFeS2443443121795639462
Quartz  (*)QuartzSiO2443443121795661156
Sphalerite  (*)SphaleriteZnS443443121795621482
Stannite  (*)Stannite SphaleriteCu2FeSnS44434431217956668



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
PorphCu-00023443443443      Chalcocite, Chalcopyrite, Epidote, Kaolinite, Molybdenite, Pyrite, Sphalerite, StanniteCu7378Catheart Mountain Locality, Bradstreet, Somerset Co., Maine, USACatheart Mt.Singer et al. (2008) USGSOFR2008_1155 


SampleSource LocalityReference URL


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