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:
Hartford Co., Connecticut, USA

Oldest recorded age at locality: 467
Youngest recorded age at locality: 220

mindat Locality ID: 20221
mindat URL: http://www.mindat.org/loc-20221.html

Tectonic Settings:

Total number of sublocalities beneath "Hartford Co., Connecticut, USA": 120
Total number of bottom-level sublocalities: 86

Number of Child Localities: 26
Child Localities:
Avon
Berlin
Bloomfield
Bristol
Burlington
Canton
East Granby
Farmington
Glastonbury
Granby
Hartford
Hartland
Manchester
Marlborough
New Britain
Newington
North Canton
Plainville
Rocky Hill
Simsbury
Southington
Suffield
West Granby
West Hartford
Wethersfield
Windsor

Latitude: 41°46'14"N
Longitude: 72°45'45"W
Decimal Degree (lat, lon): 41.770555555556,-72.7625

A	This mineral is Anthropogenic.
G	This mineral is directly dated.
B	This mineral is reported as having this age.
Y	This mineral is using an age reported as an element mineralization period.
O	This mineral is using an age calculated from all data at the locality.
R	The age displayed for this mineral originates from a different, non-child locality.
P	The 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.

Allophane	Amorphous	Amphibole	Analcime	Apatite	Apophyllite	Aragonite	Autunite	Axinite	Baryte
Beryl	Bismutite	Calcite	Chalcopyrite	Chlorite	Clay	Clinozoisite	Columbite	Copper	Corundum
Covellite	Diaspore	Digenite	Epidote	Ettringite	Feldspar	Fluorite	Gadolinite	Garnet	Gypsum
Heulandite	Kaolinite	Malachite	Meta-autunite	Mica	Molybdenite	Monazite	Mordenite	None	Not in a structural group
Olivine	Pectolite	Prehnite	Pyrite	Pyroxene	Quartz	Rhabdophane	Rhodonite	Rocksalt	Rutile
Scheelite	Serpentine	Sphalerite	Spinel	Staurolite	Stibnite	Stilpnomelane	Talc	Titanite	Tourmaline
Zircon

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: Ag Al B Ba Be Bi C Ca Ce Cl Cu F Fe H K Li Mg Mn Mo Na Nb O P Pb S Si Sn Sr Th Ti U V Y Zn Zr

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Allophane Amorphous Amphibole Analcime Apatite Apophyllite Aragonite Autunite Axinite Baryte
Beryl Bismutite Calcite Chalcopyrite Chlorite Clay Clinozoisite Columbite Copper Corundum
Covellite Diaspore Digenite Epidote Ettringite Feldspar Fluorite Gadolinite Garnet Gypsum
Heulandite Kaolinite Malachite Meta-autunite Mica Molybdenite Monazite Mordenite None Not in a structural group
Olivine Pectolite Prehnite Pyrite Pyroxene Quartz Rhabdophane Rhodonite Rocksalt Rutile
Scheelite Serpentine Sphalerite Spinel Staurolite Stibnite Stilpnomelane Talc Titanite Tourmaline
Zircon

103 IMA Minerals at location:

Actinolite ()*	Albite ()*	Allophane ()*	Almandine ()*	Analcime ()*
Anhydrite ()*	Annite ()*	Antigorite ()*	Aragonite ()*	Aurichalcite ()*
Autunite ()*	Axinite-(Fe) ()*	Azurite ()*	Babingtonite ()*	Baryte ()*
Beryl ()*	Bismuthinite ()*	Bismutite ()*	Bornite ()*	Calcite ()*
Carnotite ()*	Cassiterite ()*	Celestine ()*	Cerussite ()*	Chalcocite ()*
Chalcopyrite ()*	Chrysocolla ()*	Chrysotile ()*	Clinochlore ()*	Clinozoisite ()*
Coffinite ()*	Columbite-(Fe) ()*	Cookeite ()*	Copper ()*	Covellite ()*
Cuprite ()*	Datolite ()*	Dickite ()*	Digenite ()*	Diopside ()*
Djurleite ()*	Dolomite ()*	Dravite ()*	Elbaite ()*	Epidote ()*
Ferrimolybdite ()*	Fluorapatite ()*	Fluorapophyllite-(K) ()*	Fluorite ()*	Forsterite ()*
Gahnite ()*	Galena ()*	Goethite ()*	Grayite ()*	Grossular ()*
Gypsum ()*	Hematite ()*	Heulandite-Ca ()*	Ilmenite ()*	Kaolinite ()*
Kyanite ()*	Laumontite ()*	Lechatelierite ()*	Magnetite ()*	Malachite ()*
Meta-autunite ()*	Metatorbernite ()*	Microcline ()*	Molybdenite ()*	Monazite-(Ce) ()*
Mordenite ()*	Muscovite ()*	Opal ()*	Orthoclase ()*	Pectolite ()*
Prehnite ()*	Pyrite ()*	Pyrolusite ()*	Pyromorphite ()*	Quartz ()*
Rutile ()*	Samarskite-(Y) ()*	Schorl ()*	Siderite ()*	Sillimanite ()*
Silver ()*	Spessartine ()*	Sphalerite ()*	Staurolite ()*	Stilpnomelane ()*
Strengite ()*	Talc ()*	Thaumasite ()*	Thorite ()*	Titanite ()*
Torbernite ()*	Tremolite ()*	Tyuyamunite ()*	Uraninite ()*	Uranophane-α ()*
Wulfenite ()*	Zircon ()*	Zoisite ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Actinolite ()*	Amphibole	Ca₂(Mg_4.5-2.5Fe²⁺_0.5-2.5)Si₈O₂₂(OH)₂			2	198819,198828	3419
Albite ()*	Feldspar	Na(AlSi₃O₈)	467	225	20	198830,198831,198853,198856,198857,198859,198860,198861,198863,198864,198865,198866,198867,198868,198869,198870,198871,198872,198873,198874	8803
Allophane ()*	Allophane	Al₂O₃(SiO₂)_1.3-2.0·2.5-3.0H₂O			1	198818	470
Almandine ()*	Garnet	Fe²⁺₃Al₂(SiO₄)₃			13	198803,198825,198830,198850,198854,198864,198866,198867,198868,198869,198872,198874,198913	2353
Analcime ()*	Analcime	Na(AlSi₂O₆)·H₂O			2	198814,198887	1627
Anhydrite ()*	Not in a structural group	Ca(SO₄)	462.04	462.04	9	198815,198816,198838,198848,198884,198888,198892,198898,198907	1588
Annite ()*	Mica Clay	KFe²⁺₃(AlSi₃O₁₀)(OH)₂			7	198864,198867,198868,198869,198870,198873,198874	356
Antigorite ()*	Serpentine Clay	Mg₃Si₂O₅(OH)₄			1	198823	708
Aragonite ()*	Aragonite	Ca(CO₃)			7	198822,198838,198846,198886,198887,198888,198895	3250
Aurichalcite ()*	None	(Zn,Cu)₅(CO₃)₂(OH)₆			3	198888,198894,198895	919
Autunite ()*	Autunite	Ca(UO₂)₂(PO₄)₂·10-12H₂O			5	198866,198868,198869,198872,198874	1272
Axinite-(Fe) ()*	Axinite	Ca₄Fe²⁺₂Al₄[B₂Si₈O₃₀](OH)₂	462.04	462.04	1	198884	260
Azurite ()*	Not in a structural group	Cu₃(CO₃)₂(OH)₂	220	220	8	198818,198841,198878,198886,198888,198894,198904,198911	5509
Babingtonite ()*	Rhodonite	Ca₂Fe²⁺Fe³⁺Si₅O₁₄(OH)			6	198838,198843,198890,198892,198893,198899	161
Baryte ()*	Baryte	Ba(SO₄)			17	198808,198818,198845,198846,198878,198886,198887,198888,198889,198894,198895,198898,198899,198900,198904,198909,198915	11547
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈			11	198834,198853,198856,198859,198863,198866,198867,198868,198869,198872,198873	4286
Bismuthinite ()*	Stibnite	Bi₂S₃			1	198872	1935
Bismutite ()*	Bismutite	Bi₂O₂(CO₃)			2	198869,198872	716
Bornite ()*	None	Cu₅FeS₄	220	220	10	198818,198839,198840,198841,198842,198878,198888,198899,198904,198911	5516
Calcite ()*	Calcite	Ca(CO₃)			35	198805,198806,198808,198809,198810,198813,198814,198815,198818,198819,198822,198838,198843,198846,198847,198848,198878,198886,198887,198888,198889,198890,198892,198893,198894,198895,198898,198899,198900,198901,198903,198904,198907,198909,198910	27770
Carnotite ()*	None	K₂(UO₂)₂(VO₄)₂·3H₂O	220	220	1	198841	1184
Cassiterite ()*	Rutile	SnO₂			2	198856,198866	5171
Celestine ()*	Baryte	Sr(SO₄)			2	198838,198847	1252
Cerussite ()*	Aragonite	Pb(CO₃)			2	198836,198888	4979
Chalcocite ()*	None	Cu₂S	220	220	7	198818,198839,198841,198842,198888,198904,198911	5707
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	220	220	25	198818,198836,198838,198839,198840,198841,198842,198843,198846,198847,198872,198878,198886,198887,198888,198890,198892,198894,198895,198898,198899,198901,198904,198905,198909	27198
Chrysocolla ()*	Allophane	(Cu_2-xAl_x)H_2-xSi₂O₅(OH)₄·nH₂O	220	220	8	198818,198838,198841,198847,198848,198886,198899,198911	3531
Chrysotile ()*	Serpentine Clay	Mg₃Si₂O₅(OH)₄			1	198823	951
Clinochlore ()*	Chlorite Clay	Mg₅Al(AlSi₃O₁₀)(OH)₈			2	198875,198912	1756
Clinozoisite ()*	Clinozoisite Epidote	Ca₂Al₃[Si₂O₇][SiO₄]O(OH)			1	198822	1025
Coffinite ()*	Zircon	U(SiO₄)·nH₂O	220	220	1	198841	566
Columbite-(Fe) ()*	Columbite	Fe²⁺Nb₂O₆			3	198868,198872,198874	518
Cookeite ()*	Chlorite Clay	(Al,Li)₃Al₂(Si,Al)₄O₁₀(OH)₈			2	198856,198872	181
Copper ()*	Copper	Cu	220	220	4	198841,198888,198899,198905	3846
Covellite ()*	Covellite	CuS			2	198818,198911	4165
Cuprite ()*	Not in a structural group	Cu₂O	220	220	9	198806,198818,198839,198841,198842,198888,198899,198905,198911	2970
Datolite ()*	Gadolinite	CaB(SiO₄)(OH)			21	198806,198814,198815,198838,198843,198845,198846,198847,198848,198878,198887,198888,198889,198890,198892,198893,198895,198899,198900,198904,198914	498
Dickite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄			1	198858	651
Digenite ()*	Digenite	Cu_1.8S			1	198818	1027
Diopside ()*	Pyroxene	CaMgSi₂O₆	462.04	462.04	4	198803,198819,198822,198884	4135
Djurleite ()*	None	Cu₃₁S₁₆			1	198818	300
Dolomite ()*	None	CaMg(CO₃)₂			9	198808,198810,198818,198822,198840,198886,198888,198889,198895	9895
Dravite ()*	Tourmaline	NaMg₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)			2	198825,198858	648
Elbaite ()*	Tourmaline	Na(Al_1.5Li_1.5)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)			3	198856,198866,198872	520
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)			2	198838,198864	8173
Ferrimolybdite ()*	None	Fe³⁺₂(Mo⁶⁺O₄)₃·7H₂O			3	198860,198864,198869	345
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F			8	198859,198860,198863,198866,198868,198869,198872,198874	2740
Fluorapophyllite-(K) ()*	Apophyllite	KCa₄Si₈O₂₀F·8H₂O			3	198890,198892,198893	303
Fluorite ()*	Fluorite	CaF₂			5	198810,198815,198838,198843,198866	9617
Forsterite ()*	Olivine	Mg₂(SiO₄)			1	198918	1188
Gahnite ()*	Spinel	ZnAl₂O₄			1	198866	445
Galena ()*	Rocksalt	PbS			10	198803,198808,198818,198827,198836,198838,198888,198890,198892,198909	24243
Goethite ()*	Diaspore	FeO(OH)			8	198838,198872,198886,198888,198889,198891,198892,198895	7437
Grayite ()*	Rhabdophane	(Th,Pb,Ca)(PO₄)·H₂O			1	198872	17
Grossular ()*	Garnet	Ca₃Al₂(SiO₄)₃			3	198802,198803,198822	1544
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O			4	198838,198847,198887,198889	6890
Hematite ()*	Corundum	Fe₂O₃			11	198802,198838,198840,198843,198845,198846,198847,198888,198895,198900,198909	14640
Heulandite-Ca ()*	Heulandite	(Ca,Na,K)₅(Si₂₇Al₉)O₇₂·26H₂O			1	198893	246
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃			1	198831	5433
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄			1	198856	5591
Kyanite ()*	Not in a structural group	Al₂OSiO₄			8	198804,198823,198831,198832,198833,198879,198896,198905	1507
Laumontite ()*	Not in a structural group	CaAl₂Si₄O₁₂·4H₂O	462.04	462.04	4	198884,198888,198890,198892	1271
Lechatelierite ()*	Amorphous	SiO₂			2	198845,198879	62
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄			3	198822,198861,198874	14899
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	455	220	24	198802,198803,198806,198818,198838,198839,198841,198842,198843,198844,198847,198875,198878,198882,198886,198887,198888,198894,198895,198898,198899,198904,198909,198911	12537
Meta-autunite ()*	Meta-autunite	Ca(UO₂)₂(PO₄)₂·6H₂O			2	198868,198872	388
Metatorbernite ()*	None	Cu(UO₂)₂(PO₄)₂·8H₂O			2	198868,198872	443
Microcline ()*	Feldspar	K(AlSi₃O₈)	467	225	17	198803,198825,198830,198856,198857,198861,198863,198865,198866,198867,198868,198869,198870,198871,198872,198873,198874	4924
Molybdenite ()*	Molybdenite	MoS₂			5	198818,198860,198864,198868,198869	5800
Monazite-(Ce) ()*	Monazite	Ce(PO₄)			2	198867,198874	945
Mordenite ()*	Mordenite	(Na₂,Ca,K₂)₄(Al₈Si₄₀)O₉₆·28H₂O			2	198890,198892	405
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	467	225	23	198803,198818,198825,198830,198831,198851,198853,198856,198857,198859,198861,198863,198865,198866,198867,198868,198869,198870,198871,198872,198873,198874,198876	17380
Opal ()*	Amorphous	SiO₂·nH₂O			8	198859,198866,198867,198868,198872,198890,198892,198904	2994
Orthoclase ()*	Feldspar	K(AlSi₃O₈)			1	198859	2349
Pectolite ()*	Pectolite	NaCa₂Si₃O₈(OH)			4	198815,198816,198848,198888	363
Prehnite ()*	Prehnite	Ca₂Al(Si₃Al)O₁₀(OH)₂	462.04	462.04	26	198805,198806,198808,198810,198812,198814,198838,198843,198845,198846,198847,198848,198875,198878,198884,198887,198888,198890,198892,198893,198898,198899,198900,198901,198902,198907	1898
Pyrite ()*	Pyrite	FeS₂			14	198803,198808,198818,198822,198838,198868,198872,198890,198892,198893,198899,198900,198903,198910	39462
Pyrolusite ()*	Rutile	MnO₂			1	198885	3106
Pyromorphite ()*	Apatite	Pb₅(PO₄)₃Cl			3	198803,198824,198836	1725
Quartz ()*	Quartz	SiO₂	467	225	65	198803,198808,198809,198814,198815,198818,198819,198822,198824,198825,198827,198828,198829,198830,198831,198836,198838,198843,198845,198846,198847,198848,198851,198853,198856,198857,198859,198860,198861,198863,198864,198865,198866,198867,198868,198869,198870,198871,198872,198873,198874,198875,198876,198878,198884,198885,198886,198887,198888,198889,198890,198891,198892,198893,198894,198895,198898,198899,198900,198901,198903,198904,198909,198912,198916	61156
Rutile ()*	Rutile	TiO₂			2	198866,198875	5614
Samarskite-(Y) ()*	Columbite	YFe³⁺Nb₂O₈			4	198868,198869,198872,198874	353
Schorl ()*	Tourmaline	NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)			9	198803,198851,198859,198863,198866,198868,198869,198872,198874	2705
Siderite ()*	Calcite	Fe(CO₃)			6	198818,198886,198888,198891,198894,198895	6417
Sillimanite ()*	Not in a structural group	Al₂SiO₅			1	198858	1516
Silver ()*	Copper	Ag			1	198818	5186
Spessartine ()*	Garnet	Mn²⁺₃Al₂(SiO₄)₃			4	198856,198861,198863,198872	1214
Sphalerite ()*	Sphalerite	ZnS			14	198808,198818,198827,198836,198838,198848,198860,198861,198875,198888,198890,198892,198893,198901	21482
Staurolite ()*	Staurolite	Fe²⁺₂Al₉Si₄O₂₃(OH)	462.04	462.04	6	198831,198850,198854,198856,198875,198884	978
Stilpnomelane ()*	Stilpnomelane Clay	(K,Ca,Na)(Fe,Mg,Al)₈(Si,Al)₁₂(O,OH)₃₆·nH₂O			3	198815,198838,198907	456
Strengite ()*	None	Fe³⁺(PO₄)·2H₂O			1	198858	263
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂			3	198814,198820,198899	3337
Thaumasite ()*	Ettringite	Ca₃Si(OH)₆(CO₃)(SO₄)·12H₂O			1	198816	183
Thorite ()*	Zircon	Th(SiO₄)			1	198872	1006
Titanite ()*	Titanite	CaTi(SiO₄)O	462.04	462.04	2	198864,198884	4899
Torbernite ()*	None	Cu(UO₂)₂(PO₄)₂·12H₂O			3	198868,198869,198872	1059
Tremolite ()*	Amphibole	Ca₂(Mg_5.0-4.5Fe²⁺_0.0-0.5)Si₈O₂₂(OH)₂	462.04	462.04	2	198819,198884	2562
Tyuyamunite ()*	None	Ca(UO₂)₂(VO₄)₂·5-8H₂O	220	220	1	198841	628
Uraninite ()*	Fluorite	UO₂	220	220	4	198841,198859,198868,198872	2718
Uranophane-α ()*	None	Ca(UO₂)₂(SiO₃OH)₂·5H₂O			1	198868	890
Wulfenite ()*	Scheelite	PbMoO₄			1	198836	1655
Zircon ()*	Zircon	Zr(SiO₄)			3	198864,198872,198874	5251
Zoisite ()*	Epidote	Ca₂Al₃[Si₂O₇][SiO₄]O(OH)	462.04	462.04	1	198884	1025

27 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Sample Source	Dated Mineral	Age applies to these Elements	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference ID
sedcu-00664	220	220	Triassic					Cu	205644	Newgate Copper Mine (Old Newgate Prison), Simsbury Mines, East Granby, Hartford Co., Connecticut, USA	Newgate Prison	Cox et al. (2003)	USGSOFR03_107
USGS-Rb-Sr-05765	393	225	309±84	Rb-Sr		whole rock			233235	East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA		USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-05766	455	295	375±80	Rb-Sr		whole rock			233235	East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA		USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-05735	393	225	309±84	Rb-Sr		whole rock			235883	East Glastonbury Quarry (Curtis Quarry), East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA		USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-05736	455	295	375±80	Rb-Sr		whole rock			235883	East Glastonbury Quarry (Curtis Quarry), East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA		USGS-Rb-Sr	USGS-Rb-Sr
USGS-U-Th-Pb-01151_206_238	429	429	429	206_238		zircon	Zircon		235883	East 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_206	445	445	445	207_206		zircon	Zircon		235883	East 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_235	431	431	431	207_235		zircon	Zircon		235883	East 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_238	431	431	431	206_238		zircon	Zircon		235883	East 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_206	467	467	467	207_206		zircon	Zircon		235883	East 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_235	436	436	436	207_235		zircon	Zircon		235883	East 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_238	430	430	430	206_238		zircon	Zircon		235883	East 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_206	453	453	453	207_206		zircon	Zircon		235883	East 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_235	433	433	433	207_235		zircon	Zircon		235883	East 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_238	417	417	417	206_238		zircon	Zircon		235883	East 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_206	451	451	451	207_206		zircon	Zircon		235883	East 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_235	422	422	422	207_235		zircon	Zircon		235883	East Glastonbury Quarry (Curtis Quarry), East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA		USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-Rb-Sr-05751	393	225	309±84	Rb-Sr		whole rock			269435	Wyllys Copper Mine, Manchester, Hartford Co., Connecticut, USA		USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-05752	455	295	375±80	Rb-Sr		whole rock			269435	Wyllys Copper Mine, Manchester, Hartford Co., Connecticut, USA		USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-05753	393	225	309±84	Rb-Sr		whole rock			269435	Wyllys Copper Mine, Manchester, Hartford Co., Connecticut, USA		USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-05754	455	295	375±80	Rb-Sr		whole rock			269435	Wyllys Copper Mine, Manchester, Hartford Co., Connecticut, USA		USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-05755	393	225	309±84	Rb-Sr		whole rock			269435	Wyllys Copper Mine, Manchester, Hartford Co., Connecticut, USA		USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-05756	455	295	375±80	Rb-Sr		whole rock			269435	Wyllys Copper Mine, Manchester, Hartford Co., Connecticut, USA		USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-05757	393	225	309±84	Rb-Sr		whole rock			269435	Wyllys Copper Mine, Manchester, Hartford Co., Connecticut, USA		USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-05758	455	295	375±80	Rb-Sr		whole rock			269435	Wyllys Copper Mine, Manchester, Hartford Co., Connecticut, USA		USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-01202	462.04	462.04	462.04	Rb-Sr	age of metamorphic crystallization	whole rock			213277	State Route 2 Roadcut, Marlborough, Hartford Co., Connecticut, USA		USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-01203	462.04	462.04	462.04	Rb-Sr	age of metamorphic crystallization	whole rock			213277	State Route 2 Roadcut, Marlborough, Hartford Co., Connecticut, USA		USGS-Rb-Sr	USGS-Rb-Sr

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...