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:
East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA

Oldest recorded age at locality: 467
Youngest recorded age at locality: 225

mindat Locality ID: 233235
mindat URL: http://www.mindat.org/loc-233235.html

Tectonic Settings:

Total number of sublocalities beneath "East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA": 3
Total number of bottom-level sublocalities: 3

Number of Child Localities: 3
Child Localities:
Brack Gem Prospect (Brack Prospect)
East Glastonbury Quarry (Curtis Quarry)
Sunset Quartzite Quarry

Latitude: 41°39'31"N
Longitude: 72°31'53"W
Decimal Degree (lat, lon): 41.658611111111,-72.531388888889
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 B Be Fe H K Li Mg Mn Na O P Si Sn 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
BerylChloriteClayFeldsparGarnetKaoliniteMicaNoneNot in a structural groupQuartz
RutileStauroliteTourmaline

15 IMA Minerals at location:
Albite  (*)Beryl  (*)Cassiterite  (*)Cookeite  (*)Dickite  (*)
Dravite  (*)Elbaite  (*)Kaolinite  (*)Microcline  (*)Muscovite  (*)
Quartz  (*)Sillimanite  (*)Spessartine  (*)Staurolite  (*)Strengite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Albite  (*)FeldsparNa(AlSi3O8)4672252198856,1988578803
Beryl  (*)BerylBe3Al2Si6O1811988564286
Cassiterite  (*)RutileSnO211988565171
Cookeite  (*)Chlorite Clay(Al,Li)3Al2(Si,Al)4O10(OH)81198856181
Dickite  (*)Clay KaoliniteAl2Si2O5(OH)41198858651
Dravite  (*)TourmalineNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)1198858648
Elbaite  (*)TourmalineNa(Al1.5Li1.5)Al6(Si6O18)(BO3)3(OH)3(OH)1198856520
Kaolinite  (*)Clay KaoliniteAl2Si2O5(OH)411988565591
Microcline  (*)FeldsparK(AlSi3O8)4672252198856,1988574924
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)24672252198856,19885717380
Quartz  (*)QuartzSiO24672252198856,19885761156
Sillimanite  (*)Not in a structural groupAl2SiO511988581516
Spessartine  (*)GarnetMn2+3Al2(SiO4)311988561214
Staurolite  (*)StauroliteFe2+2Al9Si4O23(OH)1198856978
Strengite  (*)NoneFe3+(PO4)·2H2O1198858263


16 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
USGS-Rb-Sr-05765393225309±84Rb-Sr whole rock     233235East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-05766455295375±80Rb-Sr whole rock     233235East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-05735393225309±84Rb-Sr whole rock     235883East Glastonbury Quarry (Curtis Quarry), East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-05736455295375±80Rb-Sr whole rock     235883East Glastonbury Quarry (Curtis Quarry), East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-U-Th-Pb-01151_206_238429429429206_238 zircon   Zircon  235883East Glastonbury Quarry (Curtis Quarry), East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-01151_207_206445445445207_206 zircon   Zircon  235883East Glastonbury Quarry (Curtis Quarry), East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-01151_207_235431431431207_235 zircon   Zircon  235883East Glastonbury Quarry (Curtis Quarry), East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-01152_206_238431431431206_238 zircon   Zircon  235883East Glastonbury Quarry (Curtis Quarry), East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-01152_207_206467467467207_206 zircon   Zircon  235883East Glastonbury Quarry (Curtis Quarry), East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-01152_207_235436436436207_235 zircon   Zircon  235883East Glastonbury Quarry (Curtis Quarry), East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-01153_206_238430430430206_238 zircon   Zircon  235883East Glastonbury Quarry (Curtis Quarry), East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-01153_207_206453453453207_206 zircon   Zircon  235883East Glastonbury Quarry (Curtis Quarry), East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-01153_207_235433433433207_235 zircon   Zircon  235883East Glastonbury Quarry (Curtis Quarry), East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-01154_206_238417417417206_238 zircon   Zircon  235883East Glastonbury Quarry (Curtis Quarry), East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-01154_207_206451451451207_206 zircon   Zircon  235883East Glastonbury Quarry (Curtis Quarry), East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-01154_207_235422422422207_235 zircon   Zircon  235883East Glastonbury Quarry (Curtis Quarry), East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA USGS-U-Th-Pb USGS-U-Th-Pb 

SampleSource LocalityReference URL

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