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:
Essex Co., New York, USA

Oldest recorded age at locality: 1041
Youngest recorded age at locality: 541

mindat Locality ID: 18046
mindat URL: http://www.mindat.org/loc-18046.html

Tectonic Settings:

Total number of sublocalities beneath "Essex Co., New York, USA": 111
Total number of bottom-level sublocalities: 67

Number of Child Localities: 22
Child Localities:
Adirondack State Park
Alexandria
Au Sable Forks
Casey Mountain
Crown Point Township
Eisenglass Mountain
Elizabethtown Township
Essex Township
Hammondville
Jay Township
Keene Township
Keeseville
Lewis
Minerva Township
Mineville District
Newcomb Township
North Elba Township
Split Rock Mine
St. Armand
Ticonderoga Township
Willsboro
Wilmington Township

Latitude: 44°10'30"N
Longitude: 73°45'47"W
Decimal Degree (lat, lon): 44.175,-73.763055555556

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 As B Ba C Ca Ce Cl Cu F Fe H K La Li Mg Mn Mo Na Nb O P Pb S Si Th Ti U Y Zn Zr 

Elements from minerals reported directly at this locality: Ca Mn O Si 

Structural Groups for minerals in this locality: 
AllaniteAmorphousAmphiboleApatiteArsenopyriteBaryteCalciteChalcopyriteClayClinozoisite
CorundumEpidoteFeldsparFluoriteGarnetHalotrichiteHarkeriteLanthaniteMeliliteMica
MolybdeniteMonaziteNickelineNoneNot in a structural groupOlivinePerovskitePrehnitePyritePyroxene
QuartzRhodoniteRocksaltRutileScapoliteScheeliteSchoepiteSmectite-vermiculiteSphaleriteSpinel
TalcTitaniteTourmalineVesuvianiteWollastoniteWöhleriteZircon

82 IMA Minerals at location:
Actinolite  (*)Åkermanite  (*)Albite  (*)Allanite-(Ce)  (*)Allanite-(Y)  (*)
Andradite  (*)Anorthite  (*)Arsenopyrite  (*)Augite  (*)Baryte  (*)
Calcite  (*)Chalcopyrite  (*)Chlorapatite  (*)Clinozoisite  (*)Cuspidine  (*)
Diopside  (*)Dravite  (*)Edenite  (*)Enstatite  (*)Epidote  (*)
Fergusonite-(Y)  (*)Ferro-actinolite  (*)Ferro-hornblende  (*)Ferro-pargasite  (*)Fluorapatite  (*)
Fluorellestadite  (*)Fluorite  (*)Forsterite  (*)Fourmarierite  (*)Gahnite  (*)
Galena  (*)Graphite  (*)Grossular  (*)Harkerite  (*)Hedenbergite  (*)
Hematite  (*)Ilmenite  (*)Kainosite-(Y)  (*)Kasolite  (*)Lanthanite-(La)  (*)
Magnetite  (*)Marialite  (*)Meionite  (*)Microcline  (*)Molybdenite  (*)
Monazite-(Ce)  (*)Monticellite  (*)Montmorillonite  (*)Muscovite  (*)Olenite  (*)
Opal  (*)Orthoclase  (*)Uranophane-β  (*)Perovskite  (*)Phlogopite  (*)
Pickeringite  (*)Prehnite  (*)Pyrite  (*)Pyrolusite  (*)Pyrrhotite  (*)
Quartz  (*)Rhodonite  (*)Rossmanite  (*)Rutile  (*)Schorl  (*)
Sillimanite  (*)Sklodowskite  (*)Sphalerite  (*)Spinel  (*)Spodumene  (*)
Stevensite  (*)Stillwellite-(Ce)  (*)Talc  (*)Thorite  (*)Titanite  (*)
Tremolite  (*)Ulvöspinel  (*)Uraninite  (*)Uranophane-α  (*)Vesuvianite  (*)
Wollastonite  (*)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)2103510092247929,2479333419
Åkermanite  (*)MeliliteCa2MgSi2O72247875,24791450
Albite  (*)FeldsparNa(AlSi3O8)104110098247887,247889,247890,247892,247929,247950,247974,2479788803
Allanite-(Ce)  (*)Allanite EpidoteCaCe(Al2Fe2+)[Si2O7][SiO4]O(OH)104110095247889,247890,247892,247929,247933706
Allanite-(Y)  (*)Allanite EpidoteCaY(Al2Fe2+)[Si2O7][SiO4]O(OH)103510092247929,24793328
Andradite  (*)GarnetCa3Fe3+2(SiO4)310089982247914,2479801534
Anorthite  (*)FeldsparCa(Al2Si2O8)2247877,2479601036
Arsenopyrite  (*)ArsenopyriteFeAsS103510093247918,247921,2479429052
Augite  (*)Pyroxene(Ca,Mg,Fe)2Si2O6103510097247916,247927,247928,247929,247942,247946,2479692060
Baryte  (*)BaryteBa(SO4)124795711547
Calcite  (*)CalciteCa(CO3)12247877,247914,247925,247927,247928,247946,247950,247955,247957,247973,247977,24798227770
Chalcopyrite  (*)ChalcopyriteCuFeS24247887,247889,247946,24795727198
Chlorapatite  (*)ApatiteCa5(PO4)3Cl103510091247930203
Clinozoisite  (*)Clinozoisite EpidoteCa2Al3[Si2O7][SiO4]O(OH)100899812479801025
Cuspidine  (*)WöhleriteCa8(Si2O7)2F4124791467
Diopside  (*)PyroxeneCaMgSi2O610089989247914,247915,247925,247950,247955,247964,247981,247982,2479854135
Dravite  (*)TourmalineNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)1247904648
Edenite  (*)AmphiboleNaCa2Mg5(Si7Al)O22(OH)2103510093247929,247933,247955160
Enstatite  (*)PyroxeneMg2Si2O61247925944
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)103510093247929,247933,2479578173
Fergusonite-(Y)  (*)ScheeliteYNbO4104110211247892196
Ferro-actinolite  (*)Amphibole   Ca2(Mg2.5-0.0Fe2+2.5-5.0)Si8O22(OH)2103510092247929,247933129
Ferro-hornblende  (*)Amphibole   Ca2(Fe2+4Al)(Si7Al)O22(OH)24247885,247946,247966,247978271
Ferro-pargasite  (*)AmphiboleNaCa2(Fe2+4Al)(Si6Al2)O22(OH)2124791554
Fluorapatite  (*)ApatiteCa5(PO4)3F1041100912247886,247900,247904,247927,247928,247933,247941,247946,247950,247952,247955,2479572740
Fluorellestadite  (*)ApatiteCa5(SiO4)1.5(SO4)1.5F124791433
Fluorite  (*)FluoriteCaF2103510094247883,247936,247941,2479429617
Forsterite  (*)OlivineMg2(SiO4)12479141188
Fourmarierite  (*)SchoepitePb1-xO3-2x(UO2)4(OH)4+2x·4H2O104110212247887,24789261
Gahnite  (*)SpinelZnAl2O41247916445
Galena  (*)RocksaltPbS3247903,247914,24797224243
Graphite  (*)NoneC1035100926247879,247894,247896,247903,247910,247914,247925,247926,247928,247944,247946,247947,247950,247954,247955,247964,247966,247967,247969,247970,247972,247973,247976,247977,247978,2479852812
Grossular  (*)GarnetCa3Al2(SiO4)34247914,247928,247980,2479821544
Harkerite  (*)HarkeriteCa48Mg16[AlSi4O15(OH)]4(BO3)16(CO3)16·2(H2O,HCl)124791411
Hedenbergite  (*)PyroxeneCaFe2+Si2O62247916,247917741
Hematite  (*)CorundumFe2O3103510093247929,247933,24794214640
Ilmenite  (*)CorundumFe2+Ti4+O3103510094247877,247929,247933,2479575433
Kainosite-(Y)  (*)NoneCa2Y2(SiO3)4(CO3)·H2O103510092247929,24793399
Kasolite  (*)NonePb(UO2)(SiO4)·H2O104110212247887,247892198
Lanthanite-(La)  (*)LanthaniteLa2(CO3)3·8H2O124795710
Magnetite  (*)SpinelFe2+Fe3+2O41035100923247877,247881,247883,247889,247891,247905,247906,247907,247908,247914,247929,247931,247933,247935,247936,247938,247939,247940,247941,247942,247943,247957,24796114899
Marialite  (*)ScapoliteNa4Al3Si9O24Cl103510093247928,247929,247950139
Meionite  (*)ScapoliteCa4Al6Si6O24(CO3)4247917,247928,247950,247977176
Microcline  (*)FeldsparK(AlSi3O8)104110216247887,247889,247890,247892,247928,2479744924
Molybdenite  (*)MolybdeniteMoS2104110212247887,2479575800
Monazite-(Ce)  (*)MonaziteCe(PO4)103510092247929,247933945
Monticellite  (*)OlivineCaMg(SiO4)2247913,247914153
Montmorillonite  (*)Clay Smectite-vermiculite(Na,Ca)0.3(Al,Mg)2Si4O10(OH)2·nH2O104110212247887,2479821508
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2103510094247889,247890,247942,24797817380
Olenite  (*)TourmalineNaAl3Al6(Si6O18)(BO3)3O3(OH)124795024
Opal  (*)AmorphousSiO2·nH2O1041102112478872994
Orthoclase  (*)FeldsparK(AlSi3O8)4247910,247957,247964,2479722349
Uranophane-β  (*)NoneCa(UO2)2(SiO3OH)2·5H2O104110211247887144
Perovskite  (*)PerovskiteCaTiO31247914495
Phlogopite  (*)Mica ClayKMg3(AlSi3O10)(OH)28247897,247914,247946,247947,247950,247955,247967,2479762273
Pickeringite  (*)HalotrichiteMgAl2(SO4)4·22H2O104110211247887265
Prehnite  (*)PrehniteCa2Al(Si3Al)O10(OH)22247877,2479571898
Pyrite  (*)PyriteFeS21035100916247889,247891,247903,247914,247929,247942,247944,247946,247955,247957,247966,247967,247972,247974,247978,24798539462
Pyrolusite  (*)RutileMnO21041102112478873106
Pyrrhotite  (*)NickelineFe7S8104110218247887,247892,247900,247914,247925,247946,247955,2479579056
Quartz  (*)QuartzSiO21041100916247883,247889,247890,247892,247914,247929,247932,247933,247942,247948,247950,247957,247974,247977,247979,24798261156
Rhodonite  (*)RhodoniteCaMn3Mn(Si5O15)10419980969
Rossmanite  (*)Tourmaline   (Al2Li)Al6(Si6O18)(BO3)3(OH)3(OH)124795037
Rutile  (*)RutileTiO22247947,2479555614
Schorl  (*)TourmalineNaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)104110212247892,2479322705
Sillimanite  (*)Not in a structural groupAl2SiO512479721516
Sklodowskite  (*)NoneMg(UO2)2(SiO3OH)2·6H2O104110212247887,24789256
Sphalerite  (*)SphaleriteZnS124791421482
Spinel  (*)SpinelMgAl2O42247914,2479571934
Spodumene  (*)PyroxeneLiAlSi2O6104110211247887688
Stevensite  (*)Clay(Ca,Na)xMg3-ySi4O10(OH)22247980,24798257
Stillwellite-(Ce)  (*)NoneCeBSiO5103510092247929,24793319
Talc  (*)Clay TalcMg3Si4O10(OH)212479823337
Thorite  (*)ZirconTh(SiO4)104110093247887,247929,2479331006
Titanite  (*)TitaniteCaTi(SiO4)O1035100914247879,247887,247889,247914,247917,247925,247928,247929,247933,247942,247950,247966,247977,2479824899
Tremolite  (*)Amphibole   Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)22247914,2479502562
Ulvöspinel  (*)SpinelFe2+2TiO41247957120
Uraninite  (*)FluoriteUO2104110212247887,2478922718
Uranophane-α  (*)NoneCa(UO2)2(SiO3OH)2·5H2O104110212247887,247892890
Vesuvianite  (*)Vesuvianite(Ca,Na)19(Al,Mg,Fe)13(SiO4)10(Si2O7)4(OH,F,O)105247914,247925,247927,247928,2479641395
Wollastonite  (*)WollastoniteCaSiO310089987247914,247922,247925,247927,247980,247981,2479821247
Zircon  (*)ZirconZr(SiO4)104199810247889,247890,247892,247917,247925,247929,247932,247933,247941,2479815251



5 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
Bradley_2012_056102810221025±3U/Pb zircon   Zircon  216252Crown Point Pegmatite, Crown Point Center, Crown Point Township, Essex Co., New York, USACrown PointMcCauley and Bradley (2014)10.3749/canmin.52.2.183CM52_183 
Bradley_2012_055104110211031±10U/Pb zircon   Zircon  20644Roe Spar Bed (Roe Spar Pegmatite; Roe Mine; Spar Bed Hill), Crown Point Center, Crown Point Township, Essex Co., New York, USASpar Bed HillMcCauley and Bradley (2014)10.3749/canmin.52.2.183CM52_183 
Bradley_2012_051103510091022±13U/Pb zircon   Zircon  6417Mineville, Moriah Township, Mineville District, Essex Co., New York, USAMinevilleMcCauley and Bradley (2014)10.3749/canmin.52.2.183CM52_183 
ree-00675541541Precambrian  low      6417Mineville, Moriah Township, Mineville District, Essex Co., New York, USAMineville dumpsOrris and Grauch (2002) USGSOFR02_189 
Bradley_2012_05810089981003±5U/Pb zircon   Zircon  69598Lewis Mine (Cabot Corporation Mine; Lewis NYCO Mine), Willsboro, Essex Co., New York, USALewis MineMcCauley and Bradley (2014)10.3749/canmin.52.2.183CM52_183 


SampleSource LocalityReference URL
FKM-38Cascade Slide, Cascade Mountain, Keene Township, Essex Co., New York, USAhttps://www.rockptx.com/fkm-26-to-fkm-50/#FKM-38
FKM-126Lewis Mine (Cabot Corporation Mine; Lewis NYCO Mine), Willsboro, Essex Co., New York, USAhttps://www.rockptx.com/fkm-126-to-fkm-150/#FKM-126


All locality data graciously provided by mindat.org

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