Glastonbury, Hartford Co., Connecticut, USA

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Detailed Mineral List:

Albite
Formula:	NaAlSi3O8
Localities:	Reported from at least 16 localities in this region.
Photo: © 2008 Peter Cristofono. Albite from Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Albite var: Cleavelandite
Localities:	Hollister prospects (Hollister Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA Brack Gem prospect (Brack prospect), East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA Chamberlain Lane, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA Spinelli prospect (Spinelli quarry), Glastonbury, Hartford Co., Connecticut, USA (more information)
Photo: © 2010 Harold Moritz. Cleavelandite from Chamberlain Lane, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
'Allanite' ?
Localities:	Husband Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA ? (more information) Howe Quarry (Howe #1 Quarry; Huspband Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA ? (more information) Hollister prospects (Hollister Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA ? (more information) Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA ? (more information)
Almandine
Formula:	Fe2+3Al2(SiO4)3
Localities:	Reported from at least 10 localities in this region.
Photo: © 2005 Peter Cristofono. Almandine from Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Annite
Formula:	KFe2+3(AlSi3O10)(OH)2
Localities:	Reported from at least 10 localities in this region.
Autunite
Formula:	Ca(UO2)2(PO4)2 · 11H2O
Localities:	Husband Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA Howe Quarry (Howe #1 Quarry; Huspband Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA Spinelli prospect (Spinelli quarry), Glastonbury, Hartford Co., Connecticut, USA Hollister prospects (Hollister Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Beryl
Formula:	Be3Al2(Si6O18)
Localities:	Reported from at least 10 localities in this region.
Photo: © 2005 Peter Cristofono. Beryl from Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Beryl var: Aquamarine
Formula:	Be3Al2Si6O18
Localities:	Brack Gem prospect (Brack prospect), East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Photo: © Rowan Lytle. Aquamarine from Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Beryl var: Goshenite
Locality:	Brack Gem prospect (Brack prospect), East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Beryl var: Heliodor
Locality:	Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Beryl var: Morganite
Localities:	Brack Gem prospect (Brack prospect), East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA Hollister prospects (Hollister Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Photo: © 2012 Harold Moritz. Morganite from Hollister prospects, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Bismutite
Formula:	(BiO)2CO3
Locality:	Husband Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Cassiterite
Formula:	SnO2
Localities:	Hollister prospects (Hollister Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA Brack Gem prospect (Brack prospect), East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Photo: © 2010 Harold Moritz. Cassiterite from Brack Gem prospect, East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Chalcopyrite
Formula:	CuFeS2
Locality:	Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
'Columbite'
Formula:	(Fe,Mn)(Nb,Ta)2O6
Localities:	Reported from at least 9 localities in this region.
Photo: © 2004 Peter Cristofono. Columbite from Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Columbite-(Fe)
Formula:	FeNb2O6
Localities:	Howe Quarry (Howe #1 Quarry; Huspband Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA Spinelli prospect (Spinelli quarry), Glastonbury, Hartford Co., Connecticut, USA
Photo: © 2009 Kevin M. Czaja. Columbite-(Fe) from Hollister prospects, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
'Columbite-Tantalite'
Locality:	Hollister prospects (Hollister Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Cookeite
Formula:	LiAl4(AlSi3O10)(OH)8
Localities:	Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA Brack Gem prospect (Brack prospect), East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Photo: © Van King. Cookeite from Brack Gem prospect, East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Dickite
Formula:	Al2(Si2O5)(OH)4
Locality:	Sunset Quartzite Quarry, East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Dravite
Formula:	Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Locality:	Sunset Quartzite Quarry, East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Elbaite
Formula:	Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Localities:	Brack Gem prospect (Brack prospect), East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA Hollister prospects (Hollister Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Photo: © 2010 Harold Moritz. Elbaite from Brack Gem prospect, East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Epidote
Formula:	{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Locality:	Gas pipeline, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Photo: © 2011 Harold Moritz. Epidote from Gas pipeline, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Ferrimolybdite
Formula:	Fe2(MoO4)3 · nH2O
Localities:	Gas pipeline, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA Knob Hill Quarry, Glastonbury, Hartford Co., Connecticut, USA
Photo: © FED '11. Ferrimolybdite from Gas pipeline, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Fluorapatite
Formula:	Ca5(PO4)3F
Localities:	Reported from at least 10 localities in this region.
Photo: © 2006 Peter Cristofono. Fluorapatite from Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Fluorapatite var: Mn-bearing Fluorapatite
Formula:	(Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn3+]O4)3(F,Cl,OH)
Locality:	Howe Quarry (Howe #1 Quarry; Huspband Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Photo: © Paul Gilmore. Mn-bearing Fluorapatite from Hollister prospects, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Fluorite
Formula:	CaF2
Locality:	Hollister prospects (Hollister Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Photo: © 2009 Kevin M. Czaja. Fluorite from Hollister prospects, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Fluorite var: Chlorophane
Locality:	Hollister prospects (Hollister Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Photo: © 2012 Harold Moritz. Chlorophane from Hollister prospects, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Gahnite
Formula:	ZnAl2O4
Localities:	Hollister prospects (Hollister Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Photo: © 2009 Kevin M. Czaja. Gahnite from Hollister prospects, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
'Garnet'
Formula:	X3Z2(SiO4)3
Localities:	Hale's Quarry, Glastonbury, Hartford Co., Connecticut, USA East Glastonbury Quarry (Curtis Quarry), East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA Roaring Brook Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Grayite
Formula:	(Th,Pb,Ca)(PO4) · H2O
Locality:	Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Photo: © AK2010. Grayite from Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Hematite ?
Formula:	Fe2O3
Locality:	Spinelli prospect (Spinelli quarry), Glastonbury, Hartford Co., Connecticut, USA - erroneously reported
Ishikawaite
Formula:	U4+Fe2+Nb2O8
Locality:	Spinelli prospect (Spinelli quarry), Glastonbury, Hartford Co., Connecticut, USA
Kaolinite
Formula:	Al2(Si2O5)(OH)4
Locality:	Brack Gem prospect (Brack prospect), East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Lepidolite
Localities:	Brack Gem prospect (Brack prospect), East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA Hollister prospects (Hollister Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Photo: © 2004 Peter Cristofono. Lepidolite from Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Magnetite
Formula:	Fe2+Fe3+2O4
Localities:	Spinelli prospect (Spinelli quarry), Glastonbury, Hartford Co., Connecticut, USA Paxton Way, Glastonbury, Hartford Co., Connecticut, USA
Photo: © 2010 Harold Moritz. Magnetite from Spinelli prospect, Glastonbury, Hartford Co., Connecticut, USA
Meta-autunite
Formula:	Ca(UO2)2(PO4)2 · 6-8H2O
Localities:	Howe Quarry (Howe #1 Quarry; Huspband Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Metatorbernite
Formula:	Cu(UO2)2(PO4)2 · 8H2O
Localities:	Howe Quarry (Howe #1 Quarry; Huspband Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Photo: © AK2008. Metatorbernite from Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Microcline
Formula:	KAlSi3O8
Localities:	Reported from at least 14 localities in this region.
Photo: © FED '09. Microcline from Spinelli prospect, Glastonbury, Hartford Co., Connecticut, USA
Microcline var: Amazonite
Locality:	Paxton Way, Glastonbury, Hartford Co., Connecticut, USA
Photo: © 2010 Harold Moritz. Amazonite from Paxton Way, Glastonbury, Hartford Co., Connecticut, USA
Microlite Group
Localities:	Hollister prospects (Hollister Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA Brack Gem prospect (Brack prospect), East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA Chamberlain Lane, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA Howe Quarry (Howe #1 Quarry; Huspband Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA ? (more information)
Photo: © 2000 John H. Betts. Microlite Group from Hollister prospects, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Microlite Group var: Uranmicrolite (of Hogarth 1977) ?
Locality:	Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA - erroneously reported
Molybdenite
Formula:	MoS2
Localities:	Husband Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA Howe Quarry (Howe #1 Quarry; Huspband Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA Knob Hill Quarry, Glastonbury, Hartford Co., Connecticut, USA Gas pipeline, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Photo: © 2012 Harold Moritz. Molybdenite from Gas pipeline, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
'Monazite'
Localities:	Hollister prospects (Hollister Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA Howe Quarry (Howe #1 Quarry; Huspband Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA ? (more information)
Photo: © 2012 Harold Moritz. Monazite from Hollister prospects, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Monazite-(Ce)
Formula:	(Ce,La,Nd,Th)(PO4)
Localities:	Howe #4 Quarry and Eureka Quarries, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA Spinelli prospect (Spinelli quarry), Glastonbury, Hartford Co., Connecticut, USA
Photo: © 2012 Anthony Albini. Monazite-(Ce) from Spinelli prospect, Glastonbury, Hartford Co., Connecticut, USA
Muscovite
Formula:	KAl2(AlSi3O10)(OH)2
Localities:	Reported from at least 15 localities in this region.
Photo: © 2005 Peter Cristofono. Muscovite from Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Nacrite ?
Formula:	Al2(Si2O5)(OH)4
Description:	Dick Schooner reports (via Januzzi, 1976) finding nacrite in an unspecified pegmatite, no details are provided.
Reference:	Januzzi, Ronald. (1976): Mineral Localities of CT & SE NY State, p. 234-5.
Opal var: Opal-AN
Formula:	SiO2 · nH2O
Localities:	Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA Hale's Quarry, Glastonbury, Hartford Co., Connecticut, USA Howe Quarry (Howe #1 Quarry; Huspband Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA Howe #4 Quarry and Eureka Quarries, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA Hollister prospects (Hollister Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Photo: © 2005 Peter Cristofono. Opal-AN from Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Orthoclase
Formula:	KAlSi3O8
Locality:	Hale's Quarry, Glastonbury, Hartford Co., Connecticut, USA
Phosphuranylite ?
Formula:	(H3O)3KCa(UO2)7(PO4)4O4 · 8H2O
Locality:	Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA - erroneously reported
Pollucite ?
Formula:	(Cs,Na)2(Al2Si4O12) · 2H2O
Locality:	Hollister prospects (Hollister Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA - erroneously reported
Pyrite
Formula:	FeS2
Localities:	Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA Hollister prospects (Hollister Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA ? (more information)
Pyrolusite
Formula:	MnO2
Localities:	South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA (more information) Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA (more information) Husband Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA (more information) Howe Quarry (Howe #1 Quarry; Huspband Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA (more information)
Quartz
Formula:	SiO2
Localities:	Reported from at least 14 localities in this region.
Quartz var: Rose Quartz
Locality:	Husband Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Quartz var: Smoky Quartz
Formula:	SiO2
Localities:	Reported from at least 10 localities in this region.
Photo: © 2005 Peter Cristofono. Smoky Quartz from Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Rutile var: Strüverite
Formula:	(Ti,Ta,Fe)O2
Locality:	Hollister prospects (Hollister Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Samarskite-(Y)
Formula:	(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
Localities:	Reported from at least 6 localities in this region.
Photo: © FED '09. Samarskite-(Y) from Spinelli prospect, Glastonbury, Hartford Co., Connecticut, USA
'Scapolite'
Locality:	Gas pipeline, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Schorl
Formula:	Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Localities:	Reported from at least 10 localities in this region.
Photo: © 2004 Peter Cristofono. Schorl from Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Sillimanite
Formula:	Al2(SiO4)O
Locality:	Sunset Quartzite Quarry, East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Spessartine
Formula:	Mn2+3Al2(SiO4)3
Localities:	Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA Brack Gem prospect (Brack prospect), East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA Chamberlain Lane, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA Paxton Way, Glastonbury, Hartford Co., Connecticut, USA Hollister prospects (Hollister Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA ? (more information)
Photo: © 2004 Peter Cristofono. Spessartine from Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Sphalerite
Formula:	ZnS
Localities:	Knob Hill Quarry, Glastonbury, Hartford Co., Connecticut, USA Paxton Way, Glastonbury, Hartford Co., Connecticut, USA
Photo: © 2010 Harold Moritz. Sphalerite from Paxton Way, Glastonbury, Hartford Co., Connecticut, USA
Spodumene ?
Formula:	LiAlSi2O6
Locality:	Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA - erroneously reported
Staurolite
Formula:	(Fe2+,Mg,Zn)1.5-2Al9(SiO4)4O6(OH,O)2
Localities:	Diamond Lake locality, Glastonbury, Hartford Co., Connecticut, USA Brack Gem prospect (Brack prospect), East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Photo: © 2010 Peter Cristofono. Staurolite from Diamond Lake locality, Glastonbury, Hartford Co., Connecticut, USA
Strengite
Formula:	FePO4 · 2H2O
Locality:	Sunset Quartzite Quarry, East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Thorite
Formula:	(Th,U)SiO4
Locality:	Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Titanite
Formula:	CaTi(SiO4)O
Locality:	Gas pipeline, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Torbernite
Formula:	Cu(UO2)2(PO4)2 · 12H2O
Localities:	Husband Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA Howe Quarry (Howe #1 Quarry; Huspband Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Photo: © 2010 Peter Cristofono. Torbernite from Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
'Tourmaline'
Formula:	A(D3)G6(T6O18)(BO3)3X3Z
Localities:	Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA Hollister prospects (Hollister Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Photo: © Paul Gilmore. Tourmaline from Hollister prospects, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
'Tourmaline var: Rubellite'
Locality:	Brack Gem prospect (Brack prospect), East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Uraninite
Formula:	UO2
Localities:	Hale's Quarry, Glastonbury, Hartford Co., Connecticut, USA Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA Howe Quarry (Howe #1 Quarry; Huspband Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Photo: © 2010 Peter Cristofono. Uraninite from Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Uranophane
Formula:	Ca(UO2)2[HSiO4]2 · 5H2O
Locality:	Howe Quarry (Howe #1 Quarry; Huspband Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Photo: © FED '09. Uranophane from Howe Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
'Xenotime'
Localities:	Hollister prospects (Hollister Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA Husband Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA ? (more information) Howe Quarry (Howe #1 Quarry; Huspband Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA ? (more information) Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA ? (more information) Knob Hill Quarry, Glastonbury, Hartford Co., Connecticut, USA ? (more information)
Zircon
Formula:	ZrSiO4
Localities:	Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA Spinelli prospect (Spinelli quarry), Glastonbury, Hartford Co., Connecticut, USA
Zircon var: Cyrtolite
Formula:	Zr[(SiO4),(OH)4]
Locality:	Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
Photo: © 2009 Kevin M. Czaja. Cyrtolite from Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA

75 entries listed. 50 valid minerals. 3 erroneous literature entries.