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:
Reynolds Bridge, Thomaston, Litchfield Co., Connecticut, USA

Oldest recorded age at locality: 368.14
Youngest recorded age at locality: 345.11

mindat Locality ID: 213284
mindat URL: http://www.mindat.org/loc-213284.html

Tectonic Settings:

Total number of sublocalities beneath "Reynolds Bridge, Thomaston, Litchfield Co., Connecticut, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 41°39'13"N
Longitude: 73°4'43"W
Decimal Degree (lat, lon): 41.653611111111,-73.078611111111
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 C Ca Cu Fe H K Mg Na O S Si Ti 

Elements from minerals reported directly at this locality: Al C Ca Cu Fe H K Mg Na O S Si Ti 

Structural Groups for minerals in this locality: 
AmphiboleClayClinozoisiteEpidoteFeldsparGarnetMicaNatroliteNoneNot in a structural group
PyritePyroxeneQuartzRutileTitanite

17 IMA Minerals at location:
Actinolite  (*)Albite  (*)Almandine  (*)Anatase  (*)Azurite  (*)
Clinozoisite  (*)Diopside  (*)Epidote  (*)Grossular  (*)Laumontite  (*)
Microcline  (*)Muscovite  (*)Pyrite  (*)Quartz  (*)Rutile  (*)
Scolecite  (*)Titanite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Actinolite  (*)Amphibole   Ca2(Mg4.5-2.5Fe2+0.5-2.5)Si8O22(OH)2368.14345.1103419
Albite  (*)FeldsparNa(AlSi3O8)368.14345.1108803
Almandine  (*)GarnetFe2+3Al2(SiO4)3368.14345.1102353
Anatase  (*)Not in a structural groupTiO2368.14345.1102162
Azurite  (*)Not in a structural groupCu3(CO3)2(OH)2368.14345.1105509
Clinozoisite  (*)Clinozoisite EpidoteCa2Al3[Si2O7][SiO4]O(OH)368.14345.1101025
Diopside  (*)PyroxeneCaMgSi2O6368.14345.1104135
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)368.14345.1108173
Grossular  (*)GarnetCa3Al2(SiO4)3368.14345.1101544
Laumontite  (*)Not in a structural groupCaAl2Si4O12·4H2O368.14345.1101271
Microcline  (*)FeldsparK(AlSi3O8)368.14345.1104924
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2368.14345.11017380
Pyrite  (*)PyriteFeS2368.14345.11039462
Quartz  (*)QuartzSiO2368.14345.11061156
Rutile  (*)RutileTiO2368.14345.1105614
Scolecite  (*)NatroliteCa(Si3Al2)O10·3H2O368.14345.110390
Titanite  (*)TitaniteCaTi(SiO4)O368.14345.1104899


10 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-04098368.14346.14357.14±11Rb-Srage of intrusionwhole rock     213284Reynolds Bridge, Thomaston, Litchfield Co., Connecticut, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04099368.14346.14357.14±11Rb-Srage of intrusionk-feldspar     213284Reynolds Bridge, Thomaston, Litchfield Co., Connecticut, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04100368.14346.14357.14±11Rb-Srage of intrusionmuscovite   Muscovite  213284Reynolds Bridge, Thomaston, Litchfield Co., Connecticut, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04101367.11345.11356.11±11Rb-Srage of intrusionmuscovite   Muscovite  213284Reynolds Bridge, Thomaston, Litchfield Co., Connecticut, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04102368.14346.14357.14±11Rb-Srage of intrusionwhole rock     213284Reynolds Bridge, Thomaston, Litchfield Co., Connecticut, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04103367.11345.11356.11±11Rb-Srage of metamorphic crystallizationwhole rock     213284Reynolds Bridge, Thomaston, Litchfield Co., Connecticut, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04104367.11345.11356.11±11Rb-Srage of metamorphic crystallizationbiotite     213284Reynolds Bridge, Thomaston, Litchfield Co., Connecticut, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04105367.11345.11356.11±11Rb-Srage of metamorphic crystallizationbiotite     213284Reynolds Bridge, Thomaston, Litchfield Co., Connecticut, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04106367.11345.11356.11±11Rb-Srage of metamorphic crystallizationwhole rock     213284Reynolds Bridge, Thomaston, Litchfield Co., Connecticut, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-04107367.11345.11356.11±11Rb-Srage of metamorphic crystallizationwhole rock     213284Reynolds Bridge, Thomaston, Litchfield Co., Connecticut, USA USGS-Rb-Sr USGS-Rb-Sr 

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