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Long Hill Quarry, Haddam, Middlesex County, Connecticut, USAi
Regional Level Types
Long Hill QuarryQuarry
Haddam- not defined -
Middlesex CountyCounty
ConnecticutState
USACountry

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Latitude & Longitude (WGS84):
41° 27' 36'' North , 72° 30' 25'' West
Latitude & Longitude (decimal):
41.46000,-72.50694
GeoHash:
G#: drk7y5d41
GRN:
N28W40
Locality type:
Quarry
KΓΆppen climate type:
Cfa : Humid subtropical climate
Nearest Settlements:
PlacePopulationDistance
East Haddam9,042 (2017)3.9km
Higganum1,698 (2017)5.9km
Moodus1,413 (2017)6.7km
Chester Center1,558 (2017)7.9km
Deep River Center2,484 (2017)10.4km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Lapidary and Mineral Society of Central ConnecticutMeriden, Connecticut26km
New Haven Mineral ClubNew Haven, Connecticut39km
Bristol Gem & Mineral ClubBristol, Connecticut44km


A stone quarry complex on the northern end of Long Hill, at and just south of where the power lines pass of the crest. It followed a N-S trending outcrop of near vertically-foliated biotite-garnet gneiss known in the early 19th century as the "Allen vein". The gneiss is cross-cut by numerous thin, zoned pegmatite dikes similar to those described by Barton and Goldsmith (1968) further south along the same formation on Long Hill. Minerals reported from the quarry are those occurring in both the gneiss and in the pegmatites. The list provided by Williams (circa 1945) is the largely the same for the Allen vein quarries.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


12 valid minerals.

Detailed Mineral List:

β“˜ Albite
Formula: Na(AlSi3O8)
Reference: Williams, Horace S. (circa 1945): Article for New York Society of Mineralogists. Brainerd Public Library, Haddam, Connecticut.
β“˜ Annite
Formula: KFe2+3(AlSi3O10)(OH)2
Reference: Williams, Horace S. (circa 1945): Article for New York Society of Mineralogists. Brainerd Public Library, Haddam, Connecticut.
β“˜ Beryl
Formula: Be3Al2(Si6O18)
Reference: Williams, Horace S. (circa 1945): Article for New York Society of Mineralogists. Brainerd Public Library, Haddam, Connecticut.
β“˜ 'Chabazite'
Reference: Williams, Horace S. (circa 1945): Article for New York Society of Mineralogists. Brainerd Public Library, Haddam, Connecticut.
β“˜ Chalcopyrite
Formula: CuFeS2
Reference: Williams, Horace S. (circa 1945): Article for New York Society of Mineralogists. Brainerd Public Library, Haddam, Connecticut.
β“˜ Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Reference: Williams, Horace S. (circa 1945): Article for New York Society of Mineralogists. Brainerd Public Library, Haddam, Connecticut.
β“˜ Fluorapatite
Formula: Ca5(PO4)3F
Reference: Williams, Horace S. (circa 1945): Article for New York Society of Mineralogists. Brainerd Public Library, Haddam, Connecticut.
β“˜ 'Garnet Group'
Formula: X3Z2(SiO4)3
Reference: Williams, Horace S. (circa 1945): Article for New York Society of Mineralogists. Brainerd Public Library, Haddam, Connecticut.
β“˜ Microcline
Formula: K(AlSi3O8)
Reference: Williams, Horace S. (circa 1945): Article for New York Society of Mineralogists. Brainerd Public Library, Haddam, Connecticut.
β“˜ Molybdenite
Formula: MoS2
Reference: Williams, Horace S. (circa 1945): Article for New York Society of Mineralogists. Brainerd Public Library, Haddam, Connecticut.
β“˜ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Williams, Horace S. (circa 1945): Article for New York Society of Mineralogists. Brainerd Public Library, Haddam, Connecticut.
β“˜ Pyrite
Formula: FeS2
Reference: Williams, Horace S. (circa 1945): Article for New York Society of Mineralogists. Brainerd Public Library, Haddam, Connecticut.
β“˜ Quartz
Formula: SiO2
Reference: Williams, Horace S. (circa 1945): Article for New York Society of Mineralogists. Brainerd Public Library, Haddam, Connecticut.
β“˜ 'Stilbite Subgroup'
Formula: M6-7[Al8-9Si27-28O72] · nH2O
Reference: Williams, Horace S. (circa 1945): Article for New York Society of Mineralogists. Brainerd Public Library, Haddam, Connecticut.
β“˜ Titanite
Formula: CaTi(SiO4)O
Reference: Williams, Horace S. (circa 1945): Article for New York Society of Mineralogists. Brainerd Public Library, Haddam, Connecticut.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
β“˜Chalcopyrite2.CB.10aCuFeS2
β“˜Molybdenite2.EA.30MoS2
β“˜Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
β“˜Quartz4.DA.05SiO2
Group 8 - Phosphates, Arsenates and Vanadates
β“˜Fluorapatite8.BN.05Ca5(PO4)3F
Group 9 - Silicates
β“˜Albite9.FA.35Na(AlSi3O8)
β“˜Annite9.EC.20KFe2+3(AlSi3O10)(OH)2
β“˜Beryl9.CJ.05Be3Al2(Si6O18)
β“˜Epidote9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
β“˜Microcline9.FA.30K(AlSi3O8)
β“˜Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
β“˜Titanite9.AG.15CaTi(SiO4)O
Unclassified Minerals, Rocks, etc.
β“˜'Chabazite'-
β“˜'Garnet Group'-X3Z2(SiO4)3
β“˜'Stilbite Subgroup'-M6-7[Al8-9Si27-28O72] Β· nH2O

List of minerals for each chemical element

HHydrogen
Hβ“˜ AnniteKFe32+(AlSi3O10)(OH)2
Hβ“˜ Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Hβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Hβ“˜ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
BeBeryllium
Beβ“˜ BerylBe3Al2(Si6O18)
OOxygen
Oβ“˜ AlbiteNa(AlSi3O8)
Oβ“˜ AnniteKFe32+(AlSi3O10)(OH)2
Oβ“˜ BerylBe3Al2(Si6O18)
Oβ“˜ Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Oβ“˜ FluorapatiteCa5(PO4)3F
Oβ“˜ Garnet GroupX3Z2(SiO4)3
Oβ“˜ MicroclineK(AlSi3O8)
Oβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Oβ“˜ QuartzSiO2
Oβ“˜ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
Oβ“˜ TitaniteCaTi(SiO4)O
FFluorine
Fβ“˜ FluorapatiteCa5(PO4)3F
NaSodium
Naβ“˜ AlbiteNa(AlSi3O8)
AlAluminium
Alβ“˜ AlbiteNa(AlSi3O8)
Alβ“˜ AnniteKFe32+(AlSi3O10)(OH)2
Alβ“˜ BerylBe3Al2(Si6O18)
Alβ“˜ Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Alβ“˜ MicroclineK(AlSi3O8)
Alβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Alβ“˜ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
SiSilicon
Siβ“˜ AlbiteNa(AlSi3O8)
Siβ“˜ AnniteKFe32+(AlSi3O10)(OH)2
Siβ“˜ BerylBe3Al2(Si6O18)
Siβ“˜ Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Siβ“˜ Garnet GroupX3Z2(SiO4)3
Siβ“˜ MicroclineK(AlSi3O8)
Siβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Siβ“˜ QuartzSiO2
Siβ“˜ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
Siβ“˜ TitaniteCaTi(SiO4)O
PPhosphorus
Pβ“˜ FluorapatiteCa5(PO4)3F
SSulfur
Sβ“˜ ChalcopyriteCuFeS2
Sβ“˜ MolybdeniteMoS2
Sβ“˜ PyriteFeS2
KPotassium
Kβ“˜ AnniteKFe32+(AlSi3O10)(OH)2
Kβ“˜ MicroclineK(AlSi3O8)
Kβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Caβ“˜ Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Caβ“˜ FluorapatiteCa5(PO4)3F
Caβ“˜ TitaniteCaTi(SiO4)O
TiTitanium
Tiβ“˜ TitaniteCaTi(SiO4)O
FeIron
Feβ“˜ AnniteKFe32+(AlSi3O10)(OH)2
Feβ“˜ ChalcopyriteCuFeS2
Feβ“˜ Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Feβ“˜ PyriteFeS2
CuCopper
Cuβ“˜ ChalcopyriteCuFeS2
MoMolybdenum
Moβ“˜ MolybdeniteMoS2

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Williams, Horace S. (circa 1945): Article for New York Society of Mineralogists. Brainerd Public Library, Haddam, Connecticut.
Barton, William R. and Carl E. Goldsmith. (1968): New England Beryllium Investigations. U. S. Bureau of Mines, Report of Investigations 7070.

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