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:
Harwinton, Litchfield Co., Connecticut, USA


mindat Locality ID: 228536
mindat URL: http://www.mindat.org/loc-228536.html

Tectonic Settings:

Total number of sublocalities beneath "Harwinton, Litchfield Co., Connecticut, USA": 5
Total number of bottom-level sublocalities: 5

Number of Child Localities: 5
Child Localities:
Harwinton Stibnite Locality
Lead Mine Brook
Pegmatite Quarry
Rock Brook
State Route 8 And State Route 118 Interchange

Latitude: 41°45'8"N
Longitude: 73°4'24"W
Decimal Degree (lat, lon): 41.752222222222,-73.073333333333

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 C Ca Cl Cu F Fe H K Li Mg Na O P S Si Ti U Y Zn Zr 

Elements from minerals reported directly at this locality: Al Fe H O Si 

Structural Groups for minerals in this locality: 
AmorphousAmphiboleApatiteArseniosideriteBerauniteBerylCalciteChabaziteChalcopyriteClay
ClinozoisiteDiasporeEpidoteFeldsparGarnetMeta-autuniteMicaNickelineNoneNot in a structural group
OlivinePyritePyroxeneQuartzRockbridgeiteSphaleriteSpinelStauroliteTitaniteTourmaline
VivianiteZircon

35 IMA Minerals at location:
Actinolite  (*)Albite  (*)Anatase  (*)Beraunite  (*)Beryl  (*)
Calcite  (*)Chabazite-Ca  (*)Chalcopyrite  (*)Diopside  (*)Epidote  (*)
Fluorapatite  (*)Goethite  (*)Grossular  (*)Heterosite  (*)Kyanite  (*)
Magnetite  (*)Meta-autunite  (*)Microcline  (*)Mitridatite  (*)Muscovite  (*)
Opal  (*)Pyrite  (*)Pyrrhotite  (*)Quartz  (*)Rockbridgeite  (*)
Sarcolite  (*)Schorl  (*)Sphalerite  (*)Staurolite  (*)Synchysite-(Y)  (*)
Titanite  (*)Tremolite  (*)Triphylite  (*)Vivianite  (*)Zircon  (*)
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)211989523419
Albite  (*)FeldsparNa(AlSi3O8)2198950,1989528803
Anatase  (*)Not in a structural groupTiO211989522162
Beraunite  (*)BerauniteFe3+6(PO4)4O(OH)4·6H2O1198952136
Beryl  (*)BerylBe3Al2Si6O184198949,198950,198951,1989524286
Calcite  (*)CalciteCa(CO3)119895227770
Chabazite-Ca  (*)ChabaziteCa2[Al4Si8O24]·13H2O1198952310
Chalcopyrite  (*)ChalcopyriteCuFeS2119895227198
Diopside  (*)PyroxeneCaMgSi2O611989524135
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)11989528173
Fluorapatite  (*)ApatiteCa5(PO4)3F11989522740
Goethite  (*)DiasporeFeO(OH)11989527437
Grossular  (*)GarnetCa3Al2(SiO4)311989521544
Heterosite  (*)OlivineFe3+(PO4)1198952204
Kyanite  (*)Not in a structural groupAl2OSiO42198949,1989511507
Magnetite  (*)SpinelFe2+Fe3+2O4119895214899
Meta-autunite  (*)Meta-autuniteCa(UO2)2(PO4)2·6H2O1198952388
Microcline  (*)FeldsparK(AlSi3O8)11989504924
Mitridatite  (*)ArseniosideriteCa2Fe3+3O2(PO4)3·3H2O1198952129
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)22198950,19895217380
Opal  (*)AmorphousSiO2·nH2O2198949,1989522994
Pyrite  (*)PyriteFeS2119895239462
Pyrrhotite  (*)NickelineFe7S811989529056
Quartz  (*)QuartzSiO23198950,198951,19895261156
Rockbridgeite  (*)Rockbridgeite(Fe2+0.5Fe3+0.5)2Fe3+3(PO4)3(OH)51198952206
Sarcolite  (*)NoneNa4Ca12Al8Si12O46(SiO4,PO4)(OH,H2O)4(CO3,Cl)11989526
Schorl  (*)TourmalineNaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)11989502705
Sphalerite  (*)SphaleriteZnS119895221482
Staurolite  (*)StauroliteFe2+2Al9Si4O23(OH)0978
Synchysite-(Y)  (*)NoneCaY(CO3)2F119895255
Titanite  (*)TitaniteCaTi(SiO4)O11989524899
Tremolite  (*)Amphibole   Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)211989522562
Triphylite  (*)OlivineLiFe2+(PO4)1198952313
Vivianite  (*)VivianiteFe2+3(PO4)2·8H2O1198952636
Zircon  (*)ZirconZr(SiO4)11989525251



No ages have been assigned to this locality yet.

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All locality data graciously provided by mindat.org

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