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:
Thompson, Windham Co., Connecticut, USA


mindat Locality ID: 293940
mindat URL: http://www.mindat.org/loc-293940.html

Tectonic Settings:

Total number of sublocalities beneath "Thompson, Windham Co., Connecticut, USA": 2
Total number of bottom-level sublocalities: 1

Number of Child Localities: 1
Child Localities:
West Thompson

Latitude: 41°56'44"N
Longitude: 71°53'52"W
Decimal Degree (lat, lon): 41.945555555556,-71.897777777778
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 C Ca Fe H K Mg Na O S Si Ti 

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

Structural Groups for minerals in this locality: 
AmphiboleCalciteClayCorundumDiasporeMicaNoneNot in a structural groupPyriteRutile
SpinelStilbiteTourmaline

13 IMA Minerals at location:
Actinolite  (*)Calcite  (*)Corundum  (*)Goethite  (*)Hematite  (*)
Kyanite  (*)Magnetite  (*)Muscovite  (*)Pyrite  (*)Rutile  (*)
Schorl  (*)Stilbite-Ca  (*)Tremolite  (*)
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)203419
Calcite  (*)CalciteCa(CO3)119936127770
Corundum  (*)CorundumAl2O311993611797
Goethite  (*)DiasporeFeO(OH)07437
Hematite  (*)CorundumFe2O3119936114640
Kyanite  (*)Not in a structural groupAl2OSiO411993611507
Magnetite  (*)SpinelFe2+Fe3+2O4119936114899
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2119936117380
Pyrite  (*)PyriteFeS2039462
Rutile  (*)RutileTiO211993615614
Schorl  (*)TourmalineNaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)11993612705
Stilbite-Ca  (*)StilbiteNaCa4(Si27Al9)O72·28H2O0268
Tremolite  (*)Amphibole   Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)211993612562


No ages have been assigned to this locality yet.
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