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Arnold Granite Quarry (General Brainerd Quarry; Great Hill Quarry; Hazelton Quarry; Haddam Quarry; Brookes Quarry), Haddam, Middlesex Co., Connecticut, USAi
Regional Level Types
Arnold Granite Quarry (General Brainerd Quarry; Great Hill Quarry; Hazelton Quarry; Haddam Quarry; Brookes Quarry)Quarry
Haddam- not defined -
Middlesex Co.County
ConnecticutState
USACountry

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Key
Latitude & Longitude (WGS84):
41° 28' 19'' North , 72° 30' 24'' West
Latitude & Longitude (decimal):
Locality type:
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
East Haddam9,042 (2017)4.3km
Higganum1,698 (2017)5.0km
Moodus1,413 (2017)5.8km
Chester Center1,558 (2017)9.0km
Deep River Center2,484 (2017)11.5km


The stone quarry complex on the top of Great Hill was started by Nehemiah & General John Brainerd in 1794. Around 1827 it was taken over by the Arnold family. The southern part started as the separate Hazelton Quarry but apparently the two merged into one quarry at some point. Quarrying ended a bit before 1900, but in the 21st century was revived on a small scale as the Brookes Quarry. It followed a N-S trending outcrop of near vertically-foliated biotite-garnet gneiss known in the early 19th century as the "Allen vein" (Shepard (1837), Williams (circa 1945)). 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.

According to the Haddam Historical Society web site, stone from this quarry was used to construct the 1845 Middlesex County Jail at the intersection of Jail Hill Road and the old Middlesex County turnpike (now state Route 154). "The Arnolds provided all the raw material for the jail including stone from their quarry." This building still stands and serves as a convenient place to view stone from the Allen vein. Another similar building is the old Brainerd Academy, now town offices located at Field Park. Walls all over the area feature the stone.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


16 valid minerals.

Detailed Mineral List:

Actinolite
Formula: ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Reference: Weber and Sullivan (1995)
Albite
Formula: Na(AlSi3O8)
Reference: Shepard (1837)
'Allanite Group'
Formula: {A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
Reference: Weber and Sullivan (1995)
Almandine
Formula: Fe2+3Al2(SiO4)3
Habit: dodecahedral
Colour: red
Description: The feldspar veins that are met with in the gneiss quarries often contain beautiful small dodecahedrons of precious garnet. (Davis, 1901)
Reference: Davis, James W. (1901): The Minerals of Haddam, Conn. Mineral Collector, v. 8, no. 4, pp. 50-54, and no. 5, pp. 65-70.
'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
Reference: Shepard (1837)
Beryl
Formula: Be3Al2(Si6O18)
Reference: 5th and 6th Annual Reports of the Curators of the museum of Wesleyan University, Middletown, 1877.
'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Reference: Williams (circa 1945)
'Chabazite'
Reference: Williams (circa 1945)
Chalcopyrite
Formula: CuFeS2
Reference: Williams (circa 1945)
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Reference: 5th and 6th Annual Reports of the Curators of the museum of Wesleyan University, Middletown, 1877.
'Garnet Group'
Formula: X3Z2(SiO4)3
Reference: Shepard (1837)
Ilmenite
Formula: Fe2+TiO3
Reference: 5th and 6th Annual Reports of the Curators of the museum of Wesleyan University, Middletown, 1877.
Ilmenite var: Manaccanite
Formula: Fe2+TiO3
Reference: 5th and 6th Annual Reports of the Curators of the museum of Wesleyan University, Middletown, 1877.
Magnetite
Formula: Fe2+Fe3+2O4
Reference: 5th and 6th Annual Reports of the Curators of the museum of Wesleyan University, Middletown, 1877.; Weber and Sullivan (1995)
Marcasite
Formula: FeS2
Description: met with occasionally in the gneiss quarries (Davis, 1901)
Reference: Davis, James W. (1901): The Minerals of Haddam, Conn. Mineral Collector, v. 8, no. 4, pp. 50-54, and no. 5, pp. 65-70.
Microcline
Formula: K(AlSi3O8)
Reference: Weber and Sullivan (1995)
Molybdenite
Formula: MoS2
Habit: hexagonal prisms and plates
Description: found in the gneiss quarries in hexagonal prisms and plates, often of considerable size, but it is by no means an abundant or easy mineral to find, as it is secured by the quarrymen in splitting gneiss for curbing, and you might look an entire day through the quarries without finding a specimen. (Davis, 1901)
Reference: Davis, James W. (1901): The Minerals of Haddam, Conn. Mineral Collector, v. 8, no. 4, pp. 50-54, and no. 5, pp. 65-70.
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Williams (circa 1945)
Pyrite
Formula: FeS2
Reference: 5th and 6th Annual Reports of the Curators of the museum of Wesleyan University, Middletown, 1877.
Pyrrhotite
Formula: Fe7S8
Reference: 5th and 6th Annual Reports of the Curators of the museum of Wesleyan University, Middletown, 1877.
Sillimanite
Formula: Al2(SiO4)O
Reference: Weber and Sullivan (1995)
'Stilbite subgroup'
Reference: Williams (circa 1945)
Titanite
Formula: CaTi(SiO4)O
Reference: Weber and Sullivan (1995)
'Tourmaline'
Formula: A(D3)G6(Si6O18)(BO3)3X3Z
Reference: Shepard (1837); Weber and Sullivan (1995)

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Chalcopyrite2.CB.10aCuFeS2
Marcasite2.EB.10aFeS2
Molybdenite2.EA.30MoS2
Pyrite2.EB.05aFeS2
Pyrrhotite2.CC.10Fe7S8
Group 4 - Oxides and Hydroxides
Ilmenite4.CB.05Fe2+TiO3
var: Manaccanite4.CB.05Fe2+TiO3
Magnetite4.BB.05Fe2+Fe3+2O4
Group 9 - Silicates
Actinolite9.DE.10☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Albite9.FA.35Na(AlSi3O8)
Almandine9.AD.25Fe2+3Al2(SiO4)3
Beryl9.CJ.05Be3Al2(Si6O18)
Epidote9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Microcline9.FA.30K(AlSi3O8)
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Sillimanite9.AF.05Al2(SiO4)O
Titanite9.AG.15CaTi(SiO4)O
Unclassified Minerals, Rocks, etc.
'Allanite Group'-{A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
'Apatite'-Ca5(PO4)3(Cl/F/OH)
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
'Chabazite'-
'Garnet Group'-X3Z2(SiO4)3
'Stilbite subgroup'-
'Tourmaline'-A(D3)G6(Si6O18)(BO3)3X3Z

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmXp, with m:p = 1:1
Pyrrhotite2.8.10.1Fe7S8
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Marcasite2.12.2.1FeS2
Molybdenite2.12.10.1MoS2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X3
Ilmenite4.3.5.1Fe2+TiO3
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Almandine51.4.3a.2Fe2+3Al2(SiO4)3
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [4] and >[4] coordination
Sillimanite52.2.2a.1Al2(SiO4)O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] and/or >[6] coordination
Titanite52.4.3.1CaTi(SiO4)O
Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
Epidote58.2.1a.7{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with [Si6O18] rings; possible (OH) and Al substitution
Beryl61.1.1.1Be3Al2(Si6O18)
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Albite76.1.3.1Na(AlSi3O8)
Microcline76.1.1.5K(AlSi3O8)
Unclassified Minerals, Mixtures, etc.
Actinolite-☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
'Allanite Group'-{A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
'Apatite'-Ca5(PO4)3(Cl/F/OH)
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
'Chabazite'-
'Garnet Group'-X3Z2(SiO4)3
Ilmenite
var: Manaccanite
-Fe2+TiO3
'Stilbite subgroup'-
'Tourmaline'-A(D3)G6(Si6O18)(BO3)3X3Z

List of minerals for each chemical element

HHydrogen
H Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
H ApatiteCa5(PO4)3(Cl/F/OH)
H Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
H Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
H MuscoviteKAl2(AlSi3O10)(OH)2
H BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
BeBeryllium
Be BerylBe3Al2(Si6O18)
BBoron
B TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
OOxygen
O BerylBe3Al2(Si6O18)
O Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
O MagnetiteFe2+Fe23+O4
O Ilmenite (var: Manaccanite)Fe2+TiO3
O AlbiteNa(AlSi3O8)
O ApatiteCa5(PO4)3(Cl/F/OH)
O TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
O Garnet GroupX3Z2(SiO4)3
O Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
O Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
O MicroclineK(AlSi3O8)
O SillimaniteAl2(SiO4)O
O TitaniteCaTi(SiO4)O
O MuscoviteKAl2(AlSi3O10)(OH)2
O BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
O AlmandineFe32+Al2(SiO4)3
O IlmeniteFe2+TiO3
FFluorine
F ApatiteCa5(PO4)3(Cl/F/OH)
F BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
NaSodium
Na AlbiteNa(AlSi3O8)
MgMagnesium
Mg Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Mg BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
AlAluminium
Al BerylBe3Al2(Si6O18)
Al Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Al AlbiteNa(AlSi3O8)
Al MicroclineK(AlSi3O8)
Al SillimaniteAl2(SiO4)O
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Al AlmandineFe32+Al2(SiO4)3
SiSilicon
Si BerylBe3Al2(Si6O18)
Si Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Si AlbiteNa(AlSi3O8)
Si TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
Si Garnet GroupX3Z2(SiO4)3
Si Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Si Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
Si MicroclineK(AlSi3O8)
Si SillimaniteAl2(SiO4)O
Si TitaniteCaTi(SiO4)O
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Si AlmandineFe32+Al2(SiO4)3
PPhosphorus
P ApatiteCa5(PO4)3(Cl/F/OH)
SSulfur
S PyriteFeS2
S PyrrhotiteFe7S8
S MolybdeniteMoS2
S ChalcopyriteCuFeS2
S MarcasiteFeS2
ClChlorine
Cl ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
K MicroclineK(AlSi3O8)
K MuscoviteKAl2(AlSi3O10)(OH)2
K BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
CaCalcium
Ca Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Ca ApatiteCa5(PO4)3(Cl/F/OH)
Ca Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Ca TitaniteCaTi(SiO4)O
TiTitanium
Ti Ilmenite (var: Manaccanite)Fe2+TiO3
Ti TitaniteCaTi(SiO4)O
Ti IlmeniteFe2+TiO3
FeIron
Fe PyriteFeS2
Fe PyrrhotiteFe7S8
Fe Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Fe MagnetiteFe2+Fe23+O4
Fe Ilmenite (var: Manaccanite)Fe2+TiO3
Fe Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Fe ChalcopyriteCuFeS2
Fe BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Fe AlmandineFe32+Al2(SiO4)3
Fe MarcasiteFeS2
Fe IlmeniteFe2+TiO3
CuCopper
Cu ChalcopyriteCuFeS2
MoMolybdenum
Mo MolybdeniteMoS2

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Shepard, Charles U. (1837), Report on the Geological Survey of Connecticut. Hamlin, New Haven.
Curators of the Museum of Wesleyan University, Middletown. (1877), 5th and 6th Annual Reports.
Schairer, John F. (1931), Minerals of Connecticut. State Geological and Natural History Survey of Connecticut Bulletin 51.
Williams, Horace S. (circa 1945), Article for New York Society of Mineralogists. Brainerd Public Library, Haddam, Connecticut.
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.
Schooner, Richard. (1961), The Mineralogy of Connecticut. Fluorescent House, Branford, Connecticut.
Barton, William R. and Carl E. Goldsmith. (1968), New England Beryllium Investigations. U. S. Bureau of Mines, Report of Investigations 7070.
Lundgren, Lawrence, Jr. (1979), The Bedrock Geology of the Haddam Quadrangle. State Geological and Natural History Survey of Connecticut. Quadrangle Report No. 37: 9-13.
Weber, Marcelle H. and Earle C. Sullivan. (1995), Connecticut Mineral Locality Index. Rocks & Minerals (Connecticut Issue): 70(6): 403.

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