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East Hampton (Chatham), Middlesex Co., Connecticut, USA
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List of minerals arranged by Strunz 10th Edition classification
Group 1 - Elements
Gold1.AA.05Au
Graphite1.CB.05aC
Sulphur1.CC.05S8
Group 2 - Sulphides and Sulfosalts
Arsenopyrite2.EB.20FeAsS
var: Danaite2.EB.20(Fe0.90Co0.10)AsS - (Fe0.65Co0.35)AsS
Bismuthinite ?2.DB.05Bi2S3
Breithauptite ?2.CC.05NiSb
Chalcopyrite2.CB.10aCuFeS2
Cobaltite ?2.EB.25CoAsS
Covellite2.CA.05aCuS
Galena2.CD.10PbS
Gersdorffite2.EB.25NiAsS
Löllingite2.EB.15aFeAs2
Marcasite2.EB.10aFeS2
Molybdenite ?2.EA.30MoS2
Nickeline ?2.CC.05NiAs
Pyrite2.EB.05aFeS2
Pyrrhotite2.CC.10Fe1-xS (x = 0 to 0.17)
Rammelsbergite ?2.EB.15aNiAs2
Safflorite ?2.EB.15aCoAs2
Sphalerite2.CB.05aZnS
Wurtzite
var: Voltzite ?
2.CB.45(Zn,Fe)S
Group 3 - Halides
Fluorite3.AB.25CaF2
var: Chlorophane3.AB.25CaF2
Group 4 - Oxides and Hydroxides
Arsenolite ?4.CB.50As2O3
Cassiterite4.DB.05SnO2
Columbite-(Fe)4.DB.35FeNb2O6
Gahnite4.BB.05ZnAl2O4
Goethite4.00.α-Fe3+O(OH)
Hydrokenoelsmoreite ?4.DH.152W2O6(H2O)
var: Ferritungstite ?4.DH.152W2O6(H2O)
Ixiolite4.DB.25(Ta,Nb,Sn,Fe,Mn)4O8
var: Wolframoixiolite4.DB.25(Nb,W,Ta,Fe,Mn,Nb)2O4
Magnetite ?4.BB.05Fe2+Fe3+2O4
Microlite Group4.00.
var: Uranmicrolite (of Hogarth 1977)4.00.
Opal4.DA.10SiO2 · nH2O
var: Opal-AN4.DA.10SiO2 · nH2O
Pyrochlore Group ?4.00.A2Nb2(O,OH)6Z
Quartz4.DA.05SiO2
var: Ferruginous Quartz4.DA.05SiO2
var: Rose Quartz4.DA.05SiO2
var: Smoky Quartz4.DA.05SiO2
Rutile
var: Strüverite
4.DB.05(Ti,Ta,Fe)O2
Samarskite-(Y) ?4.DB.25(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
Tantalite-(Mn)4.DB.35MnTa2O6
Tanteuxenite-(Y)4.DG.05(Y,Ce,Ca)(Ta,Nb,Ti)2(O,OH)6
Tapiolite-(Fe)4.DB.10(Fe,Mn)(Ta,Nb)2O6
Uraninite4.DL.05UO2
Yttrocolumbite-(Y) ?4.DB.25Y(U4+,Fe2+)Nb2O8
Group 5 - Nitrates and Carbonates
Bastnäsite-(Ce)5.BD.20a(Ce,La)(CO3)F
Beyerite ?5.BE.35Ca(BiO)2(CO3)2
Malachite5.BA.10Cu2(CO3)(OH)2
Siderite5.AB.05FeCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Gypsum7.CD.40CaSO4 · 2H2O
Jarosite ?7.BC.10KFe3+ 3(SO4)2(OH)6
Melanterite7.CB.35FeSO4 · 7H2O
Pickeringite7.CB.85MgAl2(SO4)4 · 22H2O
Powellite ?7.GA.05Ca(MoO4)
Scheelite7.GA.05Ca(WO4)
Wulfenite ?7.GA.05Pb(MoO4)
Group 8 - Phosphates, Arsenates and Vanadates
Annabergite8.CE.40Ni3(AsO4)2 · 8H2O
Arrojadite-(KFe) ?8.BF.05{KNa}{Fe2+◻}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)(OH)2
Autunite8.EB.05Ca(UO2)2(PO4)2 · 11H2O
Beraunite8.DC.27Fe2+Fe3+5(PO4)4(OH)5 · 6H2O
Diadochite8.DB.05Fe3+2(PO4)(SO4)(OH) · 5H2O
Erythrite8.CE.40Co3(AsO4)2 · 8H2O
Ferrisicklerite8.AB.10Li1-x(Fe3+xFe2+1-x)PO4
Fluorapatite8.BN.05Ca2Ca3(PO4)3F
var: Mn-bearing Fluorapatite8.BN.05(Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
Grayite8.CJ.45(Th,Pb,Ca)(PO4) · H2O
Heterosite8.AB.10(Fe3+,Mn3+)PO4
Hydroxylapatite8.BN.05Ca5(PO4)3(OH)
Hydroxylherderite8.BA.10CaBe(PO4)(OH,F)
Laueite8.DC.30Mn2+Fe3+2(PO4)2(OH)2 · 8H2O
Ludlamite8.CD.20(Fe,Mn,Mg)3(PO4)2 · 4H2O
Messelite8.CG.05Ca2(Fe2+,Mn2+)(PO4)2 · 2H2O
Meta-autunite8.EB.10Ca(UO2)2(PO4)2 · 6-8H2O
Metatorbernite8.EB.10Cu(UO2)2(PO4)2 · 8H2O
Mitridatite8.DH.30Ca2Fe3+3(PO4)3O2 · 3H2O
Monazite-(Ce)8.AD.50(Ce,La,Nd,Th)(PO4)
Moraesite ?8.DA.05Be2(PO4)(OH) · 4H2O
Phosphophyllite8.CA.40Zn2Fe(PO4)2 · 4H2O
'Pitticite' ?8.DB.05(Fe, SO4, AsO4, H2O) ?
Rockbridgeite ?8.BC.10Fe2+Fe3+4(PO4)3(OH)5
Roscherite ?8.DA.10Ca2Mn2+5Be4(PO4)6(OH)4 · 6H2O
Scorodite8.CD.10FeAsO4 · 2H2O
Strunzite8.DC.25Mn2+Fe3+2(PO4)2(OH)2 · 6H2O
Torbernite8.EB.05Cu(UO2)2(PO4)2 · 12H2O
Triphylite8.AB.10LiFe2+PO4
Triplite8.BB.10(Mn2+,Fe2+)2(PO4)(F,OH)
Vivianite8.CE.40Fe2+3(PO4)2 · 8H2O
Whitmoreite8.DC.15Fe2+Fe3+2(PO4)2(OH)2 · 4H2O
Xanthoxenite ?8.DH.40Ca4Fe3+2(PO4)4(OH)2 · 3H2O
Group 9 - Silicates
Actinolite9.DE.10☐{Ca2}{(Mg,Fe2+)5}(Si8O22)(OH)2
Albite9.FA.35NaAlSi3O8
var: Cleavelandite9.FA.35NaAlSi3O8
var: Oligoclase9.FA.35(Na,Ca)[Al(Si,Al)Si2O8]
Allanite-(Ce)9.BG.05b{CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Almandine9.AD.25Fe2+3Al2(SiO4)3
Annite9.EC.20KFe2+3(AlSi3O10)(OH)2
Anorthite9.FA.35CaAl2Si2O8
var: Labradorite9.FA.35(Ca,Na)[Al(Al,Si)Si2O8]
Augite9.DA.15(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Bavenite9.DF.25Ca4Be2Al2Si9O26(OH)2
Bertrandite9.BD.05Be4(Si2O7)(OH)2
Beryl9.CJ.05Be3Al2(Si6O18)
var: Aquamarine9.CJ.05Be3Al2Si6O18
var: Heliodor9.CJ.05Be3Al2(Si6O18)
var: Morganite9.CJ.05Be3Al2(Si6O18)
Cerite-(Ce) ?9.AG.20(Ce,Ca)9(Mg,Fe)(SiO4)3(HSiO4)4(OH)3
Cordierite ?9.CJ.10(Mg,Fe)2Al3(AlSi5O18)
Cummingtonite9.DE.05☐{Mg2}{Mg5}(Si8O22)(OH)2
Diopside ?9.DA.15CaMgSi2O6
Dravite9.CK.05Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Elbaite9.CK.05Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Foitite ?9.CK.05(□,Na)(Fe2+2Al)Al6(Si6O18)(BO3)3(OH)3OH
Grossular9.AD.25Ca3Al2(SiO4)3
Kaolinite9.ED.05Al2(Si2O5)(OH)4
Kyanite9.AF.15Al2(SiO4)O
Microcline9.FA.30KAlSi3O8
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
var: Sericite9.EC.15KAl2(AlSi3O10)(OH)2
Schorl9.CK.05Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Sillimanite9.AF.05Al2(SiO4)O
Spessartine9.AD.25Mn2+3Al2(SiO4)3
Staurolite9.AF.30(Fe2+,Mg,Zn)1.5-2Al9(SiO4)4O6(OH,O)2
Titanite9.AG.15CaTi(SiO4)O
Tremolite ?9.DE.10☐{Ca2}{Mg5}(Si8O22)(OH)2
Uranophane9.AK.15Ca(UO2)2[HSiO4]2 · 5H2O
'Uvite' ?9..Ca(Mg3)MgAl5(Si6O18)(BO3)3(OH)3(F/OH)
Zircon9.AD.30ZrSiO4
var: Cyrtolite9.AD.30Zr[(SiO4),(OH)4]
Unclassified Minerals
'Albite-Anorthite Series'-
'Almandine-Spessartine Series'-
'Biotite'-
'Chlorite Group'-
'Columbite'-(Fe,Mn)(Nb,Ta)2O6
'Copiapite Group'-
'Garnet'-X3Z2(SiO4)3
'Hornblende'-
'K Feldspar
var: Adularia'
-KAlSi3O8
'Lanthanite' ?-
'Lepidolite'-
'Limonite'-FeO(OH) · nH2O
'Monazite'-
'Olivine' ?-(Mg,Fe2+)2SiO4
'Perthite'-
'Scapolite'-
'Tantalite' ?-(Fe,Mn)(Ta,Nb)2O6
'Tourmaline'-A(D3)G6(T6O18)(BO3)3X3Z
'Xenotime' ?-


152 entries listed. 131 valid minerals.

References

Cameron, Eugene N., Larrabee David M., McNair, Andrew H., Page, James T., Stewart, Glenn W., and Shainin, Vincent E. (1954): Pegmatite Investigations 1942-45 New England; USGS Professional Paper 255.

Schooner, Richard. (1958): The Mineralogy of the Portland-East Hampton-Middletown-Haddam Area in Connecticut (With a few notes on Glastonbury and Marlborough). Published by Richard Schooner; Ralph Lieser of Pappy’s Beryl Shop, East Hampton; and Howard Pate of Fluorescent House, Branford, Connecticut.

Stugard, Frederick, Jr. (1958): Pegmatites of the Middletown Area, Connecticut. USGS Bulletin 1042-Q.

Schooner, Richard. (1961): The Mineralogy of Connecticut. Fluorescent House, Branford, Connecticut.

Weber, Marcelle H. and Earle C. Sullivan. (1995): Connecticut Mineral Locality Index. Rocks & Minerals (Connecticut Issue), Vol. 70, No. 6, p. 403.

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Current server date and time: December 23, 2014 00:54:36