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:
Coventry, Tolland Co., Connecticut, USA


mindat Locality ID: 239057
mindat URL: http://www.mindat.org/loc-239057.html

Tectonic Settings:

Total number of sublocalities beneath "Coventry, Tolland Co., Connecticut, USA": 1
Total number of bottom-level sublocalities: 1

Number of Child Localities: 1
Child Localities:
US Route 6 Willimantic Bypass Expressway Road Cuts

Latitude: 41°43'24"N
Longitude: 72°16'8"W
Decimal Degree (lat, lon): 41.723333333333,-72.268888888889

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 Fe H K Mg Mo Na O S Si 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
CalciteChloriteClayClinozoisiteDiasporeEpidoteFeldsparMolybdeniteNoneNot in a structural group
PrehnitePyriteQuartz

11 IMA Minerals at location:
Albite  (*)Calcite  (*)Clinochlore  (*)Epidote  (*)Goethite  (*)
Microcline  (*)Molybdenite  (*)Prehnite  (*)Pyrite  (*)Quartz  (*)
Sillimanite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Albite  (*)FeldsparNa(AlSi3O8)11993278803
Calcite  (*)CalciteCa(CO3)119932727770
Clinochlore  (*)Chlorite ClayMg5Al(AlSi3O10)(OH)811993271756
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)11993278173
Goethite  (*)DiasporeFeO(OH)11993277437
Microcline  (*)FeldsparK(AlSi3O8)11993274924
Molybdenite  (*)MolybdeniteMoS211993275800
Prehnite  (*)PrehniteCa2Al(Si3Al)O10(OH)211993271898
Pyrite  (*)PyriteFeS2119932739462
Quartz  (*)QuartzSiO2119932761156
Sillimanite  (*)Not in a structural groupAl2SiO511993271516



No ages have been assigned to this locality yet.

SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

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