Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Middletown, Middlesex County, Connecticut, USAi
Regional Level Types
MiddletownCity
Middlesex CountyCounty
ConnecticutState
USACountry

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Middletown is a city. Most of the minerals listed only at this level are actually either from the Middletown lead mine or from pegmatites.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

Mineral list contains entries from the region specified including sub-localities

72 valid minerals. 1 erroneous literature entry.

Rock Types Recorded


Rock list contains entries from the region specified including sub-localities

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Acanthite ?
Formula: Ag2S
Description: Included in a list of minerals with no details on occurrence of confirmation.
Actinolite
Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Description: Probably in the host rock.
Albite
Formula: Na(AlSi3O8)
Localities: Reported from at least 7 localities in this region.
Albite var. Cleavelandite
Formula: Na(AlSi3O8)
Habit: platy masses
Colour: white
Almandine
Formula: Fe2+3Al2(SiO4)3
Localities: Reported from at least 6 localities in this region.
Habit: Modified dodecahedrons
Colour: Deep reddish purple
Description: One specimen tested by XRF showed Fe 86%, Mn 14%.
'Almandine-Spessartine Series'
Anglesite
Formula: PbSO4
Annite
Formula: KFe2+3(AlSi3O10)(OH)2
Description: Accessory in the quartz-microcline zone. fka biotite
Arsenolite ?
Formula: As2O3
Arsenopyrite
Formula: FeAsS
Aurichalcite ?
Formula: (Zn,Cu)5(CO3)2(OH)6
Description: Included in a list of minerals with no details on occurrence of confirmation.
Autunite
Formula: Ca(UO2)2(PO4)2 · 10-12H2O
Habit: flakes, minute tabular crystals and thin scales
Colour: lemon yellow
Fluorescence: green
Description: Probably actually meta-autunite. Associated with fluorapatite, uraninite, meta-torbernite. "Areas as broad as three and four inches on a specimen were covered well with flakes of autunite." (Jones 1960)
Bertrandite
Formula: Be4(Si2O7)(OH)2
Beryl
Formula: Be3Al2(Si6O18)
Localities: Reported from at least 6 localities in this region.
Habit: hexagonal prisms
Colour: pale green
Description: subhedral crystals to about 5 cm long
Beryl var. Aquamarine
Habit: subhedral hexagonal prisms
Colour: blue
Description: Not as common as other beryl varieties.
Beryl var. Goshenite
Formula: Be3Al2(Si6O18)
Beryl var. Morganite
Formula: Be3Al2(Si6O18)
Bismuthinite
Formula: Bi2S3
References:
'Calciomicrolite'
Habit: octahedral with modifications by other isometric forms
Colour: dark yellow-green, brown, black
Description: Mostly as microcrystals to a few mm. EDS analysis of one crystals shows it to be calciomicrolite.
Calcite
Formula: CaCO3
Cassiterite
Formula: SnO2
Habit: anhedral
Colour: red-brown with iridescence
Description: Microcrystalline grains associated with cleavelandite, quartz, muscovite, calciomicrolite and elbaite.
Cerussite
Formula: PbCO3
Chalcopyrite
Formula: CuFeS2
Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Claudetite ?
Formula: As2O3
Description: According to an unconfirmed report by Schooner (circa 1980s), associated with arsenopyrite were "a few soft, transparent, gypsum-like plates" of claudetite.
Columbite-(Fe)
Formula: Fe2+Nb2O6
Habit: skeletal, prismatic
Colour: black with iridescence
Description: Dana (1837) gives analytical results: "columbic acid" (a mix of niobic and tantalic acid) 73.90%, "protoxyd of iron" 15.65%, "protoxyd of manganese" 8.00%. The specific gravity was 5.95, now known to corresponding to about 70% niobium to 30% tantalum in the "columbic acid". Later analyses that could separate "columbic acid" into niobium and tantalum oxides confirmed these results. "The china-stone quarry at Middletown has furnished the most extraordinary specimens of columbite yet described in the world. A single group of crystals obtained at this place weighed fourteen pounds. It occurs in crystals disseminated through the feldspar, many of which are very remarkable, not only for their size, but for their perfection of form." (Shepard 1837) Accessory in the quartz-microcline zone, also in fluorapatite aggregates.
'Columbite-(Fe)-Columbite-(Mn) Series'
References:
Cookeite
Formula: (LiAl4◻)[AlSi3O10](OH)8
Habit: fine-grained, globular
Colour: pale yellow
Diopside
Formula: CaMgSi2O6
Description: Probably in the host rock.
Elbaite
Formula: Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
'Feldspar Group'
'Feldspar Group var. Perthite'
Ferro-hornblende
Formula: ◻Ca2(Fe2+4Al)(Si7Al)O22(OH)2
Habit: Slightly elongated prismatic
Colour: black
Description: Porphyroblasts in amphibole gneiss adjacent to the pegmatite, subhedral crystals to about 1 cm.
Fluorapatite
Formula: Ca5(PO4)3F
Habit: subhedral prisms to skeletal
Colour: white to pale gray
Fluorescence: yellow
Fluorite
Formula: CaF2
Fluorite var. Chlorophane
Formula: CaF2
Galena
Formula: PbS
'Garnet Group'
Formula: X3Z2(SiO4)3
Goethite
Formula: Fe3+O(OH)
Greenockite ?
Formula: CdS
Description: Included in a list of minerals with no details on occurrence of confirmation.
Grossular
Formula: Ca3Al2(SiO4)3
Description: A component in calc-silicate rocks in the Collins Hill Formation that hosts the western pegmatites.
'Gummite'
Hemimorphite ?
Formula: Zn4Si2O7(OH)2 · H2O
Description: Included in a list of minerals with no details on occurrence of confirmation.
Hydrozincite
Formula: Zn5(CO3)2(OH)6
Ilmenite
Formula: Fe2+TiO3
Description: In the host rocks around the pegmatites.
Johannite
Formula: Cu(UO2)2(SO4)2(OH)2 · 8H2O
Description: "was attributed to some locality in Middletown...by C. U. Shephard, in 1850. In a recent communication to the author, Clifford Frondel of Harvard University said, 'The old reported occurrences of uranium sulfates are not valid'." Schooner (1958)
Kaolinite
Formula: Al2(Si2O5)(OH)4
References:
Kyanite
Formula: Al2(SiO4)O
Habit: Bladed
Colour: blue
Description: Bladed crystals to at least 11 cm in massive quartz.
'Lepidolite'
Habit: fine-grained granular, globular agregates
Colour: gray-pink, lavender, purple
'Limonite'
Linarite
Formula: PbCu(SO4)(OH)2
Colour: bright blue
Description: From Schooner (circa 1980s): "At the exposed galena-sphalerite-calcite veins near the lead mine tunnels, between River Road and the Connecticut River, seams and vugs contain traces of secondary minerals. One of them is linarite, as bright blue microcrystals."
Litharge
Formula: PbO
Colour: tan
Description: From Schooner (circa 1980s): "Massicot was the most abundant of the lead oxides from the now-collapsed tunnel of the lead mine nearest the river. X-ray study, however, showed the presence of minor litharge. A sample of weathered galena, picked up on the cobalt mine dump below Great Hill, had a rather thick tan crust. It gave a very good X-ray pattern of litharge."
Malachite
Formula: Cu2(CO3)(OH)2
Marcasite ?
Formula: FeS2
Description: Included in a list of minerals with no details on occurrence of confirmation.
Massicot
Formula: PbO
Colour: yellowish
Description: From Schooner (circa 1980s)" "Some rich specimens, showing soft yellowish massicot in cellular quartz, derived from the alteration of galena, were found in the last lead mine tunnel toward the river. X-ray study indicates a mixture of massicot and litharge, with massicot predominating."
Meta-autunite
Formula: Ca(UO2)2(PO4)2 · 6H2O
Habit: massive coatings
Colour: pale yellow-green
Fluorescence: green
Description: Halos around tiny weathered uraninite grains.
Microcline
Formula: K(AlSi3O8)
Localities: Reported from at least 7 localities in this region.
'Microlite Group'
Formula: A2-mTa2X6-wZ1-n
Habit: octahedral
Colour: yellow-green to brownish black
Description: Usually tiny crystal <5 mm. A crystal from the White Rocks Quarry further up the same pegmatite dike was analyzed by EDS and found to be calciomicrolite.
Mimetite ?
Formula: Pb5(AsO4)3Cl
Description: Included in a list of minerals with no details on occurrence of confirmation.
Minium ?
Formula: Pb3O4
Colour: orange-red
Description: From Schooner (circa 1980s): "Dull orange-red minium is one of the lead oxides found at the lowest of the tunnels between River Road and the Connecticut River, in Middletown. This material did not yield the good X-ray pattern of the other lead oxides, massicot, litharge, and plattnerite. It is assumed to be fine-grained or impure. Interestingly, no hematite peaks were seen."
Molybdenite
Formula: MoS2
Habit: hexagonal, tabular
Colour: metallic gray
Description: Excellent euhedral crystals to 5 cm
'Monazite Group'
Formula: REE(PO4)
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Localities: Reported from at least 7 localities in this region.
Habit: mostly anhedral, some subhedral pseudo-hexagonal tabular crystals
Colour: silvery to golden-brown
Muscovite var. Schernikite
Formula: KAl2(AlSi3O10)(OH)2
Habit: parallel-growth fibers with rhombic cross-sections
Colour: pastel lavender
Description: Usually as parallel-fiber overgrowths on muscovite.
Opal
Formula: SiO2 · nH2O
Habit: massive coatings
Colour: colorless
Fluorescence: green
Description: Usually not noticeable until a specimen is illuminated by UV light. The coatings are thin and colorless but may give a waxy appearance to the surface.
Opal var. Opal-AN
Formula: SiO2 · nH2O
Habit: massive coatings
Colour: colorless
Fluorescence: green
Description: Usually not noticeable until a specimen is illuminated by UV light. The coatings are thin and colorless but may give a waxy appearance to the surface.
Plattnerite ?
Formula: PbO2
Colour: sooty black
Description: From Schooner (circa 1980s): "Plattnerite formed a sooty black coating on altered galena, with considerable massicot and litharge, at one of the Middletown lead mines. The identity was established by X-ray study."
Prehnite
Formula: Ca2Al2Si3O10(OH)2
Description: In the host rocks surrounding the pegmatite.
Pyrite
Formula: FeS2
Habit: cubo-octahedral
Colour: brassy
Description: Masses of sub-cm crystals lining small pockets in cross-cutting quartz veins.
Pyrolusite
Formula: Mn4+O2
Description: No pyrolusite dendrite or staining in a granite pegmatite in the world has been verified as pyrolusite. The name was a mistake in the nineteenth century which has been widely publicized.
Pyromorphite
Formula: Pb5(PO4)3Cl
Description: Included in a list of minerals with no details on occurrence of confirmation.
Pyrrhotite
Formula: Fe1-xS
Quartz
Formula: SiO2
Localities: Reported from at least 10 localities in this region.
Quartz var. Rock Crystal
Formula: SiO2
Quartz var. Rose Quartz
Formula: SiO2
Habit: massive
Colour: rose
Quartz var. Smoky Quartz
Formula: SiO2
Realgar ?
Formula: As4S4
Description: According to an unconfirmed report by Schooner (circa 1980s), very sparingly associated with arsenopyrite.
Rhodonite
Formula: CaMn3Mn[Si5O15]
Description: An historical error. May have been confused with thulite, which has been found in calc-silicate rocks (in Haddam) within the Collins Hill formation that hosts the western pegmatites in this area.
Rutile ?
Formula: TiO2
Description: No specimens available for study. The Shepard (1837) report does not adequately support the identification of rutile.
Samarskite-(Y)
Formula: YFe3+Nb2O8
References:
Scheelite
Formula: Ca(WO4)
Description: "scheelite has been reported or observed in minute amounts" (Jones 1960)
Schorl
Formula: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
Scorodite ?
Formula: Fe3+AsO4 · 2H2O
Description: According to an unconfirmed report by Schooner (circa 1980s), associated with arsenopyrite.
Smithsonite ?
Formula: ZnCO3
Description: Included in a list of minerals with no details on occurrence of confirmation.
Spessartine
Formula: Mn2+3Al2(SiO4)3
Habit: trapezohedral
Colour: orange-red
Description: Crystals to at least 3mm embedded in muscovite.
Sphalerite
Formula: ZnS
Spodumene
Formula: LiAlSi2O6
'Tantalite' ?
Formula: (Mn,Fe)(Ta,Nb)2O6
Description: Mistake for columbite-tantalite
Topaz
Formula: Al2(SiO4)(F,OH)2
Torbernite
Formula: Cu(UO2)2(PO4)2 · 12H2O
Habit: minute tabular crystals and thin scales
Colour: green
Description: Probably actually metatorbernite. "in minute tabular crystals and thin scales of a siskin-green...It is attended by pitchblende [uraninite], uranium ochre [uranophane] and apatite" (Shepard 1837) and meta-autunite "It occurs occupying small cavities, mostly situated in pitchblende [uraninite]. Its texture is earthy, and its color dark green" (Shepard 1837) Accessory in the quartz-microcline zone.
'Tourmaline'
Formula: AD3G6(T6O18)(BO3)3X3Z
'Tourmaline var. Watermelon Tourmaline'
Uraninite
Formula: UO2
Habit: crude octahedrons or blebs
Colour: black
Description: Usually tiny grains, altered and surrounded by halos of secondary minerals.
Uranophane
Formula: Ca(UO2)2(SiO3OH)2 · 5H2O
Description: Alteration of uraninite, associated with it and other secondary minerals.
Vesuvianite
Formula: Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Description: A component of the calc-silicate rocks in the Collins Hill Formation, which hosts the western pegmatites.
Wurtzite ?
Formula: (Zn,Fe)S
Description: Included in a list of minerals with no details on occurrence of confirmation.
Wurtzite var. Voltzite ?
Formula: (Zn,Fe,Mn) S [with O C H ]
Description: Included in a list of minerals with no details on occurrence of confirmation.
Zircon
Formula: Zr(SiO4)
Habit: prisms with pyramidal terminations
Colour: brown
Description: Typically tiny grains.
Zircon var. Calyptolite
Formula: Zr(SiO4)
Zircon var. Cyrtolite
Formula: Zr[(SiO4),(OH)4]

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Acanthite ?2.BA.35Ag2S
Sphalerite2.CB.05aZnS
Chalcopyrite2.CB.10aCuFeS2
Greenockite ?2.CB.45CdS
Wurtzite
var. Voltzite ?
2.CB.45(Zn,Fe,Mn) S [with O C H ]
?2.CB.45(Zn,Fe)S
Pyrrhotite2.CC.10Fe1-xS
Galena2.CD.10PbS
Bismuthinite2.DB.05Bi2S3
Molybdenite2.EA.30MoS2
Pyrite2.EB.05aFeS2
Marcasite ?2.EB.10aFeS2
Arsenopyrite2.EB.20FeAsS
Realgar ?2.FA.15aAs4S4
Group 3 - Halides
Fluorite
var. Chlorophane
3.AB.25CaF2
3.AB.25CaF2
Group 4 - Oxides and Hydroxides
Goethite4.00.Fe3+O(OH)
'Microlite Group'4.00.A2-mTa2X6-wZ1-n
Litharge4.AC.20PbO
Massicot4.AC.25PbO
Minium ?4.BD.05Pb3O4
Ilmenite4.CB.05Fe2+TiO3
Claudetite ?4.CB.45As2O3
Arsenolite ?4.CB.50As2O3
Quartz4.DA.05SiO2
var. Rose Quartz4.DA.05SiO2
var. Smoky Quartz4.DA.05SiO2
var. Rock Crystal4.DA.05SiO2
Opal
var. Opal-AN
4.DA.10SiO2 · nH2O
4.DA.10SiO2 · nH2O
Cassiterite4.DB.05SnO2
Plattnerite ?4.DB.05PbO2
Pyrolusite4.DB.05Mn4+O2
Rutile ?4.DB.05TiO2
Samarskite-(Y)4.DB.25YFe3+Nb2O8
Columbite-(Fe)4.DB.35Fe2+Nb2O6
Uraninite4.DL.05UO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Smithsonite ?5.AB.05ZnCO3
Cerussite5.AB.15PbCO3
Malachite5.BA.10Cu2(CO3)(OH)2
Aurichalcite ?5.BA.15(Zn,Cu)5(CO3)2(OH)6
Hydrozincite5.BA.15Zn5(CO3)2(OH)6
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Anglesite7.AD.35PbSO4
Linarite7.BC.65PbCu(SO4)(OH)2
Johannite ?7.EB.05Cu(UO2)2(SO4)2(OH)2 · 8H2O
Scheelite7.GA.05Ca(WO4)
Group 8 - Phosphates, Arsenates and Vanadates
Fluorapatite8.BN.05Ca5(PO4)3F
Mimetite ?8.BN.05Pb5(AsO4)3Cl
Pyromorphite8.BN.05Pb5(PO4)3Cl
Scorodite ?8.CD.10Fe3+AsO4 · 2H2O
Autunite8.EB.05Ca(UO2)2(PO4)2 · 10-12H2O
Torbernite8.EB.05Cu(UO2)2(PO4)2 · 12H2O
Meta-autunite8.EB.10Ca(UO2)2(PO4)2 · 6H2O
Group 9 - Silicates
Almandine9.AD.25Fe2+3Al2(SiO4)3
Grossular9.AD.25Ca3Al2(SiO4)3
Spessartine9.AD.25Mn2+3Al2(SiO4)3
Zircon9.AD.30Zr(SiO4)
var. Calyptolite9.AD.30Zr(SiO4)
var. Cyrtolite9.AD.30Zr[(SiO4),(OH)4]
Kyanite9.AF.15Al2(SiO4)O
Topaz9.AF.35Al2(SiO4)(F,OH)2
Uranophane9.AK.15Ca(UO2)2(SiO3OH)2 · 5H2O
Bertrandite9.BD.05Be4(Si2O7)(OH)2
Hemimorphite ?9.BD.10Zn4Si2O7(OH)2 · H2O
Vesuvianite9.BG.35Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Beryl
var. Aquamarine
9.CJ.05Be3Al2(Si6O18)
9.CJ.05Be3Al2(Si6O18)
var. Morganite9.CJ.05Be3Al2(Si6O18)
var. Goshenite9.CJ.05Be3Al2(Si6O18)
Elbaite9.CK.05Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Schorl9.CK.05NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
Diopside9.DA.15CaMgSi2O6
Spodumene9.DA.30LiAlSi2O6
Actinolite9.DE.10◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Ferro-hornblende9.DE.10◻Ca2(Fe2+4Al)(Si7Al)O22(OH)2
Rhodonite9.DK.05CaMn3Mn[Si5O15]
Prehnite9.DP.20Ca2Al2Si3O10(OH)2
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
var. Schernikite9.EC.15KAl2(AlSi3O10)(OH)2
Annite9.EC.20KFe2+3(AlSi3O10)(OH)2
Cookeite9.EC.55(LiAl4◻)[AlSi3O10](OH)8
Kaolinite9.ED.05Al2(Si2O5)(OH)4
Chrysocolla9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Microcline9.FA.30K(AlSi3O8)
Albite9.FA.35Na(AlSi3O8)
var. Cleavelandite9.FA.35Na(AlSi3O8)
Unclassified
'Feldspar Group'-
'Gummite'-
'Lepidolite'-
'Limonite'-
'Monazite Group'-REE(PO4)
'Tantalite' ?-(Mn,Fe)(Ta,Nb)2O6
'Tourmaline'-AD3G6(T6O18)(BO3)3X3Z
'Feldspar Group
var. Perthite'
-
'Almandine-Spessartine Series'-
'Columbite-(Fe)-Columbite-(Mn) Series'-
'Garnet Group'-X3Z2(SiO4)3
'Tourmaline
var. Watermelon Tourmaline'
-AD3G6(T6O18)(BO3)3X3Z
'Calciomicrolite'-

List of minerals for each chemical element

HHydrogen
H Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
H AnniteKFe32+(AlSi3O10)(OH)2
H Aurichalcite(Zn,Cu)5(CO3)2(OH)6
H AutuniteCa(UO2)2(PO4)2 · 10-12H2O
H BertranditeBe4(Si2O7)(OH)2
H ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
H Cookeite(LiAl4◻)[AlSi3O10](OH)8
H ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
H Ferro-hornblende◻Ca2(Fe42+Al)(Si7Al)O22(OH)2
H GoethiteFe3+O(OH)
H HemimorphiteZn4Si2O7(OH)2 · H2O
H Opal var. Opal-ANSiO2 · nH2O
H HydrozinciteZn5(CO3)2(OH)6
H JohanniteCu(UO2)2(SO4)2(OH)2 · 8H2O
H KaoliniteAl2(Si2O5)(OH)4
H LinaritePbCu(SO4)(OH)2
H MalachiteCu2(CO3)(OH)2
H Meta-autuniteCa(UO2)2(PO4)2 · 6H2O
H MuscoviteKAl2(AlSi3O10)(OH)2
H OpalSiO2 · nH2O
H PrehniteCa2Al2Si3O10(OH)2
H Muscovite var. SchernikiteKAl2(AlSi3O10)(OH)2
H SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
H ScoroditeFe3+AsO4 · 2H2O
H TopazAl2(SiO4)(F,OH)2
H TorberniteCu(UO2)2(PO4)2 · 12H2O
H UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
H Wurtzite var. Voltzite(Zn,Fe,Mn) S [with O C H ]
H VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
H Zircon var. CyrtoliteZr[(SiO4),(OH)4]
LiLithium
Li Cookeite(LiAl4◻)[AlSi3O10](OH)8
Li ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Li SpodumeneLiAlSi2O6
BeBeryllium
Be BertranditeBe4(Si2O7)(OH)2
Be BerylBe3Al2(Si6O18)
Be Beryl var. MorganiteBe3Al2(Si6O18)
Be Beryl var. GosheniteBe3Al2(Si6O18)
BBoron
B ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
B SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
B TourmalineAD3G6(T6O18)(BO3)3X3Z
CCarbon
C Aurichalcite(Zn,Cu)5(CO3)2(OH)6
C CalciteCaCO3
C CerussitePbCO3
C HydrozinciteZn5(CO3)2(OH)6
C MalachiteCu2(CO3)(OH)2
C SmithsoniteZnCO3
C Wurtzite var. Voltzite(Zn,Fe,Mn) S [with O C H ]
OOxygen
O Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
O AlbiteNa(AlSi3O8)
O AnglesitePbSO4
O AnniteKFe32+(AlSi3O10)(OH)2
O ArsenoliteAs2O3
O Aurichalcite(Zn,Cu)5(CO3)2(OH)6
O AutuniteCa(UO2)2(PO4)2 · 10-12H2O
O AlmandineFe32+Al2(SiO4)3
O BertranditeBe4(Si2O7)(OH)2
O BerylBe3Al2(Si6O18)
O CalciteCaCO3
O CassiteriteSnO2
O CerussitePbCO3
O ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
O ClaudetiteAs2O3
O Cookeite(LiAl4◻)[AlSi3O10](OH)8
O DiopsideCaMgSi2O6
O ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
O Columbite-(Fe)Fe2+Nb2O6
O Ferro-hornblende◻Ca2(Fe42+Al)(Si7Al)O22(OH)2
O FluorapatiteCa5(PO4)3F
O GoethiteFe3+O(OH)
O GrossularCa3Al2(SiO4)3
O HemimorphiteZn4Si2O7(OH)2 · H2O
O Opal var. Opal-ANSiO2 · nH2O
O HydrozinciteZn5(CO3)2(OH)6
O IlmeniteFe2+TiO3
O JohanniteCu(UO2)2(SO4)2(OH)2 · 8H2O
O KaoliniteAl2(Si2O5)(OH)4
O KyaniteAl2(SiO4)O
O LinaritePbCu(SO4)(OH)2
O LithargePbO
O MalachiteCu2(CO3)(OH)2
O MassicotPbO
O Meta-autuniteCa(UO2)2(PO4)2 · 6H2O
O MicroclineK(AlSi3O8)
O MimetitePb5(AsO4)3Cl
O MiniumPb3O4
O Monazite GroupREE(PO4)
O Beryl var. MorganiteBe3Al2(Si6O18)
O MuscoviteKAl2(AlSi3O10)(OH)2
O OpalSiO2 · nH2O
O PlattneritePbO2
O PrehniteCa2Al2Si3O10(OH)2
O PyrolusiteMn4+O2
O PyromorphitePb5(PO4)3Cl
O QuartzSiO2
O RhodoniteCaMn3Mn[Si5O15]
O Quartz var. Rose QuartzSiO2
O RutileTiO2
O Samarskite-(Y)YFe3+Nb2O8
O ScheeliteCa(WO4)
O Muscovite var. SchernikiteKAl2(AlSi3O10)(OH)2
O SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
O ScoroditeFe3+AsO4 · 2H2O
O SmithsoniteZnCO3
O Quartz var. Smoky QuartzSiO2
O SpessartineMn32+Al2(SiO4)3
O SpodumeneLiAlSi2O6
O Tantalite(Mn,Fe)(Ta,Nb)2O6
O TopazAl2(SiO4)(F,OH)2
O TorberniteCu(UO2)2(PO4)2 · 12H2O
O TourmalineAD3G6(T6O18)(BO3)3X3Z
O UraniniteUO2
O UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
O Wurtzite var. Voltzite(Zn,Fe,Mn) S [with O C H ]
O VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
O ZirconZr(SiO4)
O Quartz var. Rock CrystalSiO2
O Zircon var. CalyptoliteZr(SiO4)
O Zircon var. CyrtoliteZr[(SiO4),(OH)4]
O Beryl var. GosheniteBe3Al2(Si6O18)
O Albite var. CleavelanditeNa(AlSi3O8)
O Almandine-Spessartine Series
O Columbite-(Fe)-Columbite-(Mn) Series
O Garnet GroupX3Z2(SiO4)3
FFluorine
F Fluorite var. ChlorophaneCaF2
F FluorapatiteCa5(PO4)3F
F FluoriteCaF2
F TopazAl2(SiO4)(F,OH)2
NaSodium
Na AlbiteNa(AlSi3O8)
Na ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Na SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Na Albite var. CleavelanditeNa(AlSi3O8)
MgMagnesium
Mg Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Mg DiopsideCaMgSi2O6
Mg VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
AlAluminium
Al AlbiteNa(AlSi3O8)
Al AnniteKFe32+(AlSi3O10)(OH)2
Al AlmandineFe32+Al2(SiO4)3
Al BerylBe3Al2(Si6O18)
Al ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Al Cookeite(LiAl4◻)[AlSi3O10](OH)8
Al ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Al Ferro-hornblende◻Ca2(Fe42+Al)(Si7Al)O22(OH)2
Al GrossularCa3Al2(SiO4)3
Al KaoliniteAl2(Si2O5)(OH)4
Al KyaniteAl2(SiO4)O
Al MicroclineK(AlSi3O8)
Al Beryl var. MorganiteBe3Al2(Si6O18)
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al PrehniteCa2Al2Si3O10(OH)2
Al Muscovite var. SchernikiteKAl2(AlSi3O10)(OH)2
Al SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Al SpessartineMn32+Al2(SiO4)3
Al SpodumeneLiAlSi2O6
Al TopazAl2(SiO4)(F,OH)2
Al VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Al Beryl var. GosheniteBe3Al2(Si6O18)
Al Albite var. CleavelanditeNa(AlSi3O8)
Al Almandine-Spessartine Series
SiSilicon
Si Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Si AlbiteNa(AlSi3O8)
Si AnniteKFe32+(AlSi3O10)(OH)2
Si AlmandineFe32+Al2(SiO4)3
Si BertranditeBe4(Si2O7)(OH)2
Si BerylBe3Al2(Si6O18)
Si ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Si Cookeite(LiAl4◻)[AlSi3O10](OH)8
Si DiopsideCaMgSi2O6
Si ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Si Ferro-hornblende◻Ca2(Fe42+Al)(Si7Al)O22(OH)2
Si GrossularCa3Al2(SiO4)3
Si HemimorphiteZn4Si2O7(OH)2 · H2O
Si Opal var. Opal-ANSiO2 · nH2O
Si KaoliniteAl2(Si2O5)(OH)4
Si KyaniteAl2(SiO4)O
Si MicroclineK(AlSi3O8)
Si Beryl var. MorganiteBe3Al2(Si6O18)
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si OpalSiO2 · nH2O
Si PrehniteCa2Al2Si3O10(OH)2
Si QuartzSiO2
Si RhodoniteCaMn3Mn[Si5O15]
Si Quartz var. Rose QuartzSiO2
Si Muscovite var. SchernikiteKAl2(AlSi3O10)(OH)2
Si SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Si Quartz var. Smoky QuartzSiO2
Si SpessartineMn32+Al2(SiO4)3
Si SpodumeneLiAlSi2O6
Si TopazAl2(SiO4)(F,OH)2
Si UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
Si VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Si ZirconZr(SiO4)
Si Quartz var. Rock CrystalSiO2
Si Zircon var. CalyptoliteZr(SiO4)
Si Zircon var. CyrtoliteZr[(SiO4),(OH)4]
Si Beryl var. GosheniteBe3Al2(Si6O18)
Si Albite var. CleavelanditeNa(AlSi3O8)
Si Almandine-Spessartine Series
Si Garnet GroupX3Z2(SiO4)3
PPhosphorus
P AutuniteCa(UO2)2(PO4)2 · 10-12H2O
P FluorapatiteCa5(PO4)3F
P Meta-autuniteCa(UO2)2(PO4)2 · 6H2O
P Monazite GroupREE(PO4)
P PyromorphitePb5(PO4)3Cl
P TorberniteCu(UO2)2(PO4)2 · 12H2O
SSulfur
S AcanthiteAg2S
S AnglesitePbSO4
S ArsenopyriteFeAsS
S BismuthiniteBi2S3
S ChalcopyriteCuFeS2
S GalenaPbS
S GreenockiteCdS
S JohanniteCu(UO2)2(SO4)2(OH)2 · 8H2O
S LinaritePbCu(SO4)(OH)2
S MarcasiteFeS2
S MolybdeniteMoS2
S PyriteFeS2
S PyrrhotiteFe1-xS
S RealgarAs4S4
S SphaleriteZnS
S Wurtzite var. Voltzite(Zn,Fe,Mn) S [with O C H ]
S Wurtzite(Zn,Fe)S
ClChlorine
Cl MimetitePb5(AsO4)3Cl
Cl PyromorphitePb5(PO4)3Cl
KPotassium
K AnniteKFe32+(AlSi3O10)(OH)2
K MicroclineK(AlSi3O8)
K MuscoviteKAl2(AlSi3O10)(OH)2
K Muscovite var. SchernikiteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Ca AutuniteCa(UO2)2(PO4)2 · 10-12H2O
Ca CalciteCaCO3
Ca Fluorite var. ChlorophaneCaF2
Ca DiopsideCaMgSi2O6
Ca Ferro-hornblende◻Ca2(Fe42+Al)(Si7Al)O22(OH)2
Ca FluorapatiteCa5(PO4)3F
Ca FluoriteCaF2
Ca GrossularCa3Al2(SiO4)3
Ca Meta-autuniteCa(UO2)2(PO4)2 · 6H2O
Ca PrehniteCa2Al2Si3O10(OH)2
Ca RhodoniteCaMn3Mn[Si5O15]
Ca ScheeliteCa(WO4)
Ca UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
Ca VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
TiTitanium
Ti IlmeniteFe2+TiO3
Ti RutileTiO2
MnManganese
Mn PyrolusiteMn4+O2
Mn RhodoniteCaMn3Mn[Si5O15]
Mn SpessartineMn32+Al2(SiO4)3
Mn Tantalite(Mn,Fe)(Ta,Nb)2O6
Mn Wurtzite var. Voltzite(Zn,Fe,Mn) S [with O C H ]
Mn Almandine-Spessartine Series
Mn Columbite-(Fe)-Columbite-(Mn) Series
FeIron
Fe Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Fe AnniteKFe32+(AlSi3O10)(OH)2
Fe ArsenopyriteFeAsS
Fe AlmandineFe32+Al2(SiO4)3
Fe ChalcopyriteCuFeS2
Fe Columbite-(Fe)Fe2+Nb2O6
Fe Ferro-hornblende◻Ca2(Fe42+Al)(Si7Al)O22(OH)2
Fe GoethiteFe3+O(OH)
Fe IlmeniteFe2+TiO3
Fe MarcasiteFeS2
Fe PyriteFeS2
Fe PyrrhotiteFe1-xS
Fe Samarskite-(Y)YFe3+Nb2O8
Fe SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Fe ScoroditeFe3+AsO4 · 2H2O
Fe Tantalite(Mn,Fe)(Ta,Nb)2O6
Fe Wurtzite var. Voltzite(Zn,Fe,Mn) S [with O C H ]
Fe VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Fe Wurtzite(Zn,Fe)S
Fe Almandine-Spessartine Series
Fe Columbite-(Fe)-Columbite-(Mn) Series
CuCopper
Cu Aurichalcite(Zn,Cu)5(CO3)2(OH)6
Cu ChalcopyriteCuFeS2
Cu ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Cu JohanniteCu(UO2)2(SO4)2(OH)2 · 8H2O
Cu LinaritePbCu(SO4)(OH)2
Cu MalachiteCu2(CO3)(OH)2
Cu TorberniteCu(UO2)2(PO4)2 · 12H2O
ZnZinc
Zn Aurichalcite(Zn,Cu)5(CO3)2(OH)6
Zn HemimorphiteZn4Si2O7(OH)2 · H2O
Zn HydrozinciteZn5(CO3)2(OH)6
Zn SmithsoniteZnCO3
Zn SphaleriteZnS
Zn Wurtzite var. Voltzite(Zn,Fe,Mn) S [with O C H ]
Zn Wurtzite(Zn,Fe)S
AsArsenic
As ArsenoliteAs2O3
As ArsenopyriteFeAsS
As ClaudetiteAs2O3
As MimetitePb5(AsO4)3Cl
As RealgarAs4S4
As ScoroditeFe3+AsO4 · 2H2O
YYttrium
Y Samarskite-(Y)YFe3+Nb2O8
ZrZirconium
Zr ZirconZr(SiO4)
Zr Zircon var. CalyptoliteZr(SiO4)
Zr Zircon var. CyrtoliteZr[(SiO4),(OH)4]
NbNiobium
Nb Columbite-(Fe)Fe2+Nb2O6
Nb Samarskite-(Y)YFe3+Nb2O8
Nb Tantalite(Mn,Fe)(Ta,Nb)2O6
Nb Columbite-(Fe)-Columbite-(Mn) Series
MoMolybdenum
Mo MolybdeniteMoS2
AgSilver
Ag AcanthiteAg2S
CdCadmium
Cd GreenockiteCdS
SnTin
Sn CassiteriteSnO2
TaTantalum
Ta Microlite GroupA2-mTa2X6-wZ1-n
Ta Tantalite(Mn,Fe)(Ta,Nb)2O6
WTungsten
W ScheeliteCa(WO4)
PbLead
Pb AnglesitePbSO4
Pb CerussitePbCO3
Pb GalenaPbS
Pb LinaritePbCu(SO4)(OH)2
Pb LithargePbO
Pb MassicotPbO
Pb MimetitePb5(AsO4)3Cl
Pb MiniumPb3O4
Pb PlattneritePbO2
Pb PyromorphitePb5(PO4)3Cl
BiBismuth
Bi BismuthiniteBi2S3
UUranium
U AutuniteCa(UO2)2(PO4)2 · 10-12H2O
U JohanniteCu(UO2)2(SO4)2(OH)2 · 8H2O
U Meta-autuniteCa(UO2)2(PO4)2 · 6H2O
U TorberniteCu(UO2)2(PO4)2 · 12H2O
U UraniniteUO2
U UranophaneCa(UO2)2(SiO3OH)2 · 5H2O

Fossils

There are 11 fossil localities from the PaleoBioDB database within this region.

These data are provided on an experimental basis and are taken from external databases. Mindat.org has no control currently over the accuracy of these data.

Occurrences11
Youngest Fossil Listed191 Ma (Early Jurassic)
Oldest Fossil Listed201 Ma (Early Jurassic)
Stratigraphic Units
UnitNo. OccurrencesAge
Agawam - Portland10201.3 - 190.8 Ma (Early Jurassic)
Meriden - East Berlin1201.3 - 199.3 Ma (Early Jurassic)
Fossils from RegionClick here to show the list.
Accepted NameHierarchy Age
Grallator (Anchisauripus) hitchcocki
species
Animalia : Chordata : Saurischia : Eubrontidae : Grallator (Eubrontes) : Grallator (Anchisauripus) hitchcocki201.3 - 190.8 Ma
Early Jurassic
Eubrontes sillimani
species
Animalia : Chordata : Saurischia : Eubrontidae : Grallator (Eubrontes) : Eubrontes sillimani201.3 - 190.8 Ma
Early Jurassic
Anchisauripus tuberosus
species
Animalia : Chordata : Saurischia : Eubrontidae : Grallator (Eubrontes) : Anchisauripus tuberosus201.3 - 190.8 Ma
Early Jurassic
Eubrontes giganteus
species
Animalia : Chordata : Saurischia : Eubrontidae : Grallator (Eubrontes) : Eubrontes giganteus201.3 - 190.8 Ma
Early Jurassic
Batrachopus
genus
Animalia : Chordata : Reptilia : Crocodylia : Batrachopodidae : Batrachopus201.3 - 190.8 Ma
Early Jurassic
Batrachopus deweyi
species
Animalia : Chordata : Reptilia : Eosuchia : Batrachopodidae : Batrachopus : Batrachopus deweyi201.3 - 190.8 Ma
Early Jurassic
Batrachopus gracilis
species
Animalia : Chordata : Reptilia : Crocodylia : Batrachopodidae : Batrachopus : Batrachopus gracilis201.3 - 190.8 Ma
Early Jurassic
Mormolucoides articulatus
species
Animalia : Arthropoda : Insecta : Coleoptera : Mormolucoides : Mormolucoides articulatus201.3 - 199.3 Ma
Early Jurassic
Ornithoidichnites parvulus
species
Ichnolites : Dipodichnites : Ornithoidichnites : Ornithoidichnites parvulus201.3 - 190.8 Ma
Early Jurassic
Fossil LocalitiesClick to show 2 fossil localities

Other Databases

Wikipedia:https://en.wikipedia.org/wiki/Middletown,_Connecticut
Wikidata ID:Q49192
GeoNames ID:4838640

Mindat Articles

Revisiting the Wesleyan University by Fred A. Schuster


Localities in this Region

Other Regions, Features and Areas that Intersect

North AmericaContinent
North America PlateTectonic Plate

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