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State Route 9 - Ellis Street and State Route 72 interchanges (State Route 72 roadcut), New Britain, Hartford Co., Connecticut, USAi
Regional Level Types
State Route 9 - Ellis Street and State Route 72 interchanges (State Route 72 roadcut)- not defined -
New Britain- not defined -
Hartford Co.County
ConnecticutState
USACountry

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Key
Latitude & Longitude (WGS84):
41° 39' 20'' North , 72° 46' 13'' West
Latitude & Longitude (decimal):
Nearest Settlements:
PlacePopulationDistance
New Britain72,808 (2017)1.0km
Kensington8,459 (2017)2.2km
Newington30,562 (2017)6.1km
Plainville17,328 (2017)7.6km
Farmington25,000 (2017)8.8km


The history of highway construction and designation in this area is confusing and specimens can be labelled differently depending on when they were collected. Most collecting took place in 1974-5 when the state expressway section in New Britain, referred to then as Route 72, was being constructed and cut through numerous, heavily faulted low basalt ridges. As originally designated, the Route 72 expressway extended from state Route 15 (SE of New Britain), past the planned Interstate 291 interchange (which headed north), toward and past Interstate 84 (W side of New Britain). It was completed in 1979 and many early specimens labels refer to Route 72. In 1986, the planned Interstate 291 (north of Route 72) was completed but it was redesignated as state Route 9 (most specimens labelled "Route 9, New Britain" come from this section) along with the existing section of state Route 72 south of their intersection connecting to Route 15. The Route 72 expressway section west of the interchange with former I-291 remained designated as state Route 72. But the stretch of Route 72 renamed Route 9 contains the bulk of the mineralized road cuts. Based on modern nomenclature, these are at the Route 9 and Ellis Street interchange area, and at the Route 9 and Route 72 interchange area, which cover about 1 mile of expressway. Though many old labels are not locality specific, the geology and mineralogy are essentially the same throughout most of New Britain so the exact origin is somewhat academic.

Mineralization is hosted primarily by a myriad of NE-SW trending fault veins cutting basalt and sedimentary rocks and by gas cavities in the basalt. Gray (1982) provides a description of the Columbus Street vein that is relevant to the State Route 9 locality, although not all the same minerals are reported for both localities:

Basalt bordering the vein is silicified and bleached to a light gray color. This type of alteration is typical of the N45°W [actually N45°E according to Hubert et al (1992)] faults in the New Britain area irrespective of the presence of the carbonate-quartz-barite veins.

Vein filling was accomplished initially by the deposition of quartz, calcite, and ferroan dolomite in open spaces along the active fault zone. Movement continued throughout this phase frequently brecciating previously deposited vein material. After faulting ceased barite which occurs in plumose crystal groups up to 20 cm long, filled the open space in the center of the vein and cemented the carbonate-quartz breccias. The ferroan dolomite of the carbonate zone is oxidized to a dark red-brown color at the boundary of the barite zone. Cavities between barite crystals are filled by small amounts of drusy quartz, ferroan dolomite, and aragonite.

Sphalerite, chalcopyrite, galena, and minor amounts of barite, chalcocite, covellite, and tennantite fill open spaces and replace carbonates within the quartz-carbonate zones. Sphalerite was the first sulfide deposited. Galena and chalcopyrite followed later.

Vitreous black carbonaceous spheres, 1 to 5 mm in diameter, occur throughout the vein but are most abundant along the boundary of the quartz-carbonate and barite zones. Presumably these spheres were droplets of oil suspended in the hydrothermal fluids which became accidentally trapped during the deposition of the vein minerals.


Januzzi (1976) provides an early mineral list. Miller (circa 1986), Hubert et al (1992) and Scovil (2008) provide additional descriptions. Hubert gives an age of 180 million years ago for the mineralization. The host rocks are about 206 million years old.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


27 valid minerals.

Detailed Mineral List:

'Amphibole Supergroup'
Formula: AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Reference: Miller, F. W. (circa 1986), Hydrothermal Quartz and Barite Veins in the Basalt of New Britain, Connecticut. Harvard University Mineralogical Musum Association.
'Amphibole Supergroup var: Byssolite'
Formula: AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Reference: Miller, F. W. (circa 1986), Hydrothermal Quartz and Barite Veins in the Basalt of New Britain, Connecticut. Harvard University Mineralogical Musum Association.
Anglesite ?
Formula: PbSO4
Description: unconfirmed, no details given by reference, not seen on many examined specimens
Reference: Januzzi, Ronald E. (1976), Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.
Anhydrite
Formula: CaSO4
Habit: Tabular, subparallel to radiating groups
Colour: light blue to blue-gray
Description: In basalt gas vesicles, the vast majority naturally dissolved away early in the paragenesis, but for some reason some crystals in this are survived.
Reference: Miller, F. W. (circa 1986), Hydrothermal Quartz and Barite Veins in the Basalt of New Britain, Connecticut. Harvard University Mineralogical Museum Association.
Aragonite
Formula: CaCO3
Habit: flattened acicular prisms
Colour: colorless to white
Fluorescence: pale yellow-white under LW/MW/SW
Description: Excellent acicular sprays of clear crystals in small cavities on very rusty/earthy goethite in the cores of fault veins, crystals usually micro to 1.5 cm or so.
Reference: Januzzi, Ronald E. (1976), Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.
Aurichalcite
Formula: (Zn,Cu)5(CO3)2(OH)6
Habit: crusts to extremely tiny crystal sprays
Colour: blue-green
Description: secondary crusts associated with metal sulfides in fault veins
Reference: Miller, F. W. (circa 1986), Hydrothermal Quartz and Barite Veins in the Basalt of New Britain, Connecticut. Harvard University Mineralogical Museum Association.
Azurite
Formula: Cu3(CO3)2(OH)2
Habit: crusts and crude microcrystals
Colour: dark blue
Description: secondary alteration of chalcopyrite with malachite in fault veins
Reference: Januzzi, Ronald E. (1976), Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.
Baryte
Formula: BaSO4
Habit: tabular to slightly radiating clusters/aggregates
Colour: white
Description: Abundant as single tabular crystals to more typical slightly divergent, radiating crystal groups in fault veins. Some show etched surfaces.
Reference: Januzzi, Ronald E. (1976), Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.
'Bitumen'
Habit: amorphous
Colour: jet black
Description: Jet black, vitreous, shapeless with conchoidal fracture, usually found interstitially with highly etched quartz, or as globules with dolomite in the fault veins.
Reference: Miller, F. W. (circa 1986), Hydrothermal Quartz and Barite Veins in the Basalt of New Britain, Connecticut. Harvard University Mineralogical Museum Association.
Bornite
Formula: Cu5FeS4
Habit: massive
Colour: black with minor iridescence
Description: As isolated masses or associated with other sulfides such as galena, sphalerite and chalcopyrite and secondary malachite.
Reference: Weber, Marcelle H. and Earle C. Sullivan. (1995), Connecticut Mineral Locality Index. Rocks & Minerals (Connecticut Issue): 70(6): 398.
Calcite
Formula: CaCO3
Habit: rhombohedral, scalenohedral or hexagonal prisms with rhombic terminations
Colour: white to pale yellow
Fluorescence: pale pink to magenta best under MW
Description: Usually formed late, on top of dolomite and quartz. Crystals from micros to a few cm.
Reference: Harold Moritz collection
Cerussite
Formula: PbCO3
Habit: encrustations
Colour: pale gray to yellow gray
Description: earthy to crusty alteration of galena in fault veins
Reference: Januzzi, Ronald E. (1976), Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.
Chalcocite
Formula: Cu2S
Habit: Striated microcrystals
Colour: Metallic blue
Description: Most copper sulfide here is bornite, small flattened siderite rhombs are striated and may look like chalcocite. A few microcrystal found, however, on quartz with malachite.
Reference: Miller, F. W. (circa 1986), Hydrothermal Quartz and Barite Veins in the Basalt of New Britain, Connecticut. Harvard University Mineralogical Museum Association.; David Busha collection.
Chalcopyrite
Formula: CuFeS2
Habit: massive, rare crystals are complexly formed, striated and deformed
Colour: brassy with iridescence
Description: Common as iridescent masses usually with dolomite, quartz and barite in fault veins. Crystals very rare and usually distorted micros.
Reference: Januzzi, Ronald E. (1976), Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.
Copper
Formula: Cu
Habit: arborescent microcrystals
Reference: Januzzi, Ronald E. (1976), Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.
Covellite ?
Formula: CuS
Description: Bona-fide analyzed and labelled covellite from Connecticut is unknown though often claimed.
Reference: Januzzi, Ronald E. (1976), Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.
Cuprite
Formula: Cu2O
Colour: red
Description: Secondary red crust/stains.
Reference: Januzzi, Ronald E. (1976), Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.
Datolite
Formula: CaB(SiO4)(OH)
Habit: Complex rather equant to granular.
Colour: pale yellow-green
Description: Drusy crystals lining gas vesicles in basalt.
Reference: Januzzi, Ronald E. (1976), Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.
Devilline ?
Formula: CaCu4(SO4)2(OH)6 · 3H2O
Description: Januzzi (1976) claims it was characterized but provides no details or citation.
Reference: Januzzi, Ronald E. (1976), Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.
Dolomite
Formula: CaMg(CO3)2
Habit: rhombohedral, some curved
Colour: white, pink, tan, brown if iron-rich
Description: Abundant as fault vein filling associated with barite, quartz, bitumen. Crystals usually drusy.
Reference: Januzzi, Ronald E. (1976), Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.
Galena
Formula: PbS
Habit: cubic to slightly cuboctahedral, interpenetration twins very rare.
Colour: dark gray, some iridescent
Description: Crystals can reach several cm in groups to over 15 cm commonly embedded in barite and/or dolomite and associated with other metal sulfides like sphalerite and bornite.
Reference: Januzzi, Ronald E. (1976), Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.
Goethite
Formula: α-Fe3+O(OH)
Habit: massive, earthy to pseudomorphous after rhombic carbonates
Colour: dark brown, brown to yellow-brown
Description: Alteration of sulfides or carbonates in fault veins.
Reference: Miller, F. W. (circa 1986), Hydrothermal Quartz and Barite Veins in the Basalt of New Britain, Connecticut. Harvard University Mineralogical Museum Association.; Januzzi, Ronald E. (1976), Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.
Hematite
Formula: Fe2O3
Habit: Tabular to granular.
Colour: Specular black to red.
Description: Microcrystals on quartz or datolite in gas vesicles in basalt.
Reference: Miller, F. W. (circa 1986), Hydrothermal Quartz and Barite Veins in the Basalt of New Britain, Connecticut. Harvard University Mineralogical Museum Association. Harold Moritz collection.
'Heulandite subgroup'
Description: Crystals to around 1 cm in gas vesicles in basalt.
Reference: Miller, F. W. (circa 1986), Hydrothermal Quartz and Barite Veins in the Basalt of New Britain, Connecticut. Harvard University Mineralogical Museum Association.
'K Feldspar'
Habit: "cauliflower-like" aggregates
Colour: Peach to tan
Description: Found in basalt cavities usually on top of datolite or prehnite indicating late crystallization.
Reference: Miller, F. W. (circa 1986), Hydrothermal Quartz and Barite Veins in the Basalt of New Britain, Connecticut. Harvard University Mineralogical Museum Association.
'K Feldspar var: Adularia'
Formula: KAlSi3O8
Habit: "cauliflower-like" aggregates
Colour: Peach to tan
Description: Found in basalt cavities usually on top of datolite or prehnite indicating late crystallization.
Reference: Miller, F. W. (circa 1986), Hydrothermal Quartz and Barite Veins in the Basalt of New Britain, Connecticut. Harvard University Mineralogical Museum Association.
Laumontite
Formula: CaAl2Si4O12 · 4H2O
Description: Crystals in gas vesicles in basalt.
Reference: Miller, F. W. (circa 1986), Hydrothermal Quartz and Barite Veins in the Basalt of New Britain, Connecticut. Harvard University Mineralogical Museum Association.
Malachite
Formula: Cu2(CO3)(OH)2
Habit: Acicular microcrystals, crusts and coatings.
Colour: Emerald green
Description: Alteration of copper sulfides, mainly chalcopyrite.
Reference: Januzzi, Ronald E. (1976), Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.
Pectolite
Formula: NaCa2Si3O8(OH)
Reference: David Busha collection
Prehnite
Formula: Ca2Al2Si3O10(OH)2
Habit: Botryoidal aggregates of tabular crystals.
Colour: Pale green.
Description: Botryoidal aggregates in basalt gas vesicles.
Reference: Miller, F. W. (circa 1986), Hydrothermal Quartz and Barite Veins in the Basalt of New Britain, Connecticut. Harvard University Mineralogical Museum Association.; Januzzi, Ronald E. (1976), Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.
Quartz
Formula: SiO2
Habit: Short prismatic Herkimer-style crystals, as parallel growth aggregates, drusy, Cumberland habit
Colour: colorless to white
Description: Drusy crystals line voids in faulted altered basalt, generally isolated or clustered Herkimer-type crystals to a few cm found rooted on the druse or with barite and dolomite, etc., scattered in fault veins. Also as parallel-growth plates of short crystals in the veins, or as Cumberland habit crystal aggregates in gas vesicles in basalt. Also massive and highly etched when associated with bitumen in the veins.
Reference: Januzzi, Ronald E. (1976), Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.
Quartz var: Amethyst
Formula: SiO2
Habit: short prismatic to prismless
Colour: purple
Description: In fault veins usually as plates of parallel crystals grading to colorless quartz.
Reference: Januzzi, Ronald E. (1976), Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.
Siderite
Formula: FeCO3
Habit: Flattened, striated rhombohedrons, rarely in saddle-shaped aggregates.
Colour: Dark brown
Description: Isolated of groups of microcrystals usually on drusy quartz and associated with baryte.
Reference: Januzzi, Ronald E. (1976), Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.; Harold Moritz collection.
Sphalerite
Formula: ZnS
Habit: Massive
Colour: dark brown to black
Description: Cleavable masses associated with other metal sulfides, primarily galena.
Reference: Januzzi, Ronald E. (1976), Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Copper1.AA.05Cu
Group 2 - Sulphides and Sulfosalts
Bornite2.BA.15Cu5FeS4
Chalcocite2.BA.05Cu2S
Chalcopyrite2.CB.10aCuFeS2
Covellite ?2.CA.05aCuS
Galena2.CD.10PbS
Sphalerite2.CB.05aZnS
Group 4 - Oxides and Hydroxides
Cuprite4.AA.10Cu2O
Goethite4.00.α-Fe3+O(OH)
Hematite4.CB.05Fe2O3
Quartz4.DA.05SiO2
var: Amethyst4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Aragonite5.AB.15CaCO3
Aurichalcite5.BA.15(Zn,Cu)5(CO3)2(OH)6
Azurite5.BA.05Cu3(CO3)2(OH)2
Calcite5.AB.05CaCO3
Cerussite5.AB.15PbCO3
Dolomite5.AB.10CaMg(CO3)2
Malachite5.BA.10Cu2(CO3)(OH)2
Siderite5.AB.05FeCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Anglesite ?7.AD.35PbSO4
Anhydrite7.AD.30CaSO4
Baryte7.AD.35BaSO4
Devilline ?7.DD.30CaCu4(SO4)2(OH)6 · 3H2O
Group 9 - Silicates
Datolite9.AJ.20CaB(SiO4)(OH)
Laumontite9.GB.10CaAl2Si4O12 · 4H2O
Pectolite9.DG.05NaCa2Si3O8(OH)
Prehnite9.DP.20Ca2Al2Si3O10(OH)2
Unclassified Minerals, Rocks, etc.
'Amphibole Supergroup'-AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
'var: Byssolite'-AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
'Bitumen'-
'Heulandite subgroup'-
'K Feldspar'-
'var: Adularia'-KAlSi3O8

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Copper1.1.1.3Cu
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 2:1
Chalcocite2.4.7.1Cu2S
AmBnXp, with (m+n):p = 3:2
Bornite2.5.2.1Cu5FeS4
AmXp, with m:p = 1:1
Covellite ?2.8.12.1CuS
Galena2.8.1.1PbS
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
Group 4 - SIMPLE OXIDES
A2X
Cuprite4.1.1.1Cu2O
A2X3
Hematite4.3.1.2Fe2O3
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Cerussite14.1.3.4PbCO3
Siderite14.1.1.3FeCO3
AB(XO3)2
Dolomite14.2.1.1CaMg(CO3)2
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Azurite16a.2.1.1Cu3(CO3)2(OH)2
Malachite16a.3.1.1Cu2(CO3)(OH)2
Aurichalcite16a.4.2.1(Zn,Cu)5(CO3)2(OH)6
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Anglesite ?28.3.1.3PbSO4
Anhydrite28.3.2.1CaSO4
Baryte28.3.1.1BaSO4
Group 31 - HYDRATED SULFATES CONTAINING HYDROXYL OR HALOGEN
(AB)5(XO4)2Zq·xH2O
Devilline ?31.6.1.1CaCu4(SO4)2(OH)6 · 3H2O
Group 54 - NESOSILICATES Borosilicates and Some Beryllosilicates
Borosilicates and Some Beryllosilicates with B in [4] coordination
Datolite54.2.1a.1CaB(SiO4)(OH)
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=3
Pectolite65.2.1.4aNaCa2Si3O8(OH)
Group 72 - PHYLLOSILICATES Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings
Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings with 4-membered rings
Prehnite72.1.3.1Ca2Al2Si3O10(OH)2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 77 - TECTOSILICATES Zeolites
Zeolite group - True zeolites
Laumontite77.1.1.4CaAl2Si4O12 · 4H2O
Unclassified Minerals, Mixtures, etc.
'Amphibole Supergroup'-AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
'var: Byssolite'-AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Aragonite-CaCO3
'Bitumen'-
'Heulandite subgroup'-
'K Feldspar'-
'var: Adularia'-KAlSi3O8
Quartz
var: Amethyst
-SiO2

List of minerals for each chemical element

HHydrogen
H MalachiteCu2(CO3)(OH)2
H AzuriteCu3(CO3)2(OH)2
H DatoliteCaB(SiO4)(OH)
H Amphibole Supergroup (var: Byssolite)AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
H Goethiteα-Fe3+O(OH)
H LaumontiteCaAl2Si4O12 · 4H2O
H PrehniteCa2Al2Si3O10(OH)2
H Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
H PectoliteNaCa2Si3O8(OH)
H Aurichalcite(Zn,Cu)5(CO3)2(OH)6
H DevillineCaCu4(SO4)2(OH)6 · 3H2O
BBoron
B DatoliteCaB(SiO4)(OH)
CCarbon
C AragoniteCaCO3
C DolomiteCaMg(CO3)2
C CalciteCaCO3
C SideriteFeCO3
C MalachiteCu2(CO3)(OH)2
C AzuriteCu3(CO3)2(OH)2
C CerussitePbCO3
C Aurichalcite(Zn,Cu)5(CO3)2(OH)6
OOxygen
O QuartzSiO2
O BaryteBaSO4
O AragoniteCaCO3
O DolomiteCaMg(CO3)2
O CalciteCaCO3
O K Feldspar (var: Adularia)KAlSi3O8
O AnhydriteCaSO4
O SideriteFeCO3
O Quartz (var: Amethyst)SiO2
O MalachiteCu2(CO3)(OH)2
O AzuriteCu3(CO3)2(OH)2
O DatoliteCaB(SiO4)(OH)
O Amphibole Supergroup (var: Byssolite)AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
O Goethiteα-Fe3+O(OH)
O HematiteFe2O3
O LaumontiteCaAl2Si4O12 · 4H2O
O PrehniteCa2Al2Si3O10(OH)2
O Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
O PectoliteNaCa2Si3O8(OH)
O CupriteCu2O
O CerussitePbCO3
O Aurichalcite(Zn,Cu)5(CO3)2(OH)6
O DevillineCaCu4(SO4)2(OH)6 · 3H2O
O AnglesitePbSO4
FFluorine
F Amphibole Supergroup (var: Byssolite)AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
F Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
NaSodium
Na PectoliteNaCa2Si3O8(OH)
MgMagnesium
Mg DolomiteCaMg(CO3)2
AlAluminium
Al K Feldspar (var: Adularia)KAlSi3O8
Al Amphibole Supergroup (var: Byssolite)AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Al LaumontiteCaAl2Si4O12 · 4H2O
Al PrehniteCa2Al2Si3O10(OH)2
Al Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
SiSilicon
Si QuartzSiO2
Si K Feldspar (var: Adularia)KAlSi3O8
Si Quartz (var: Amethyst)SiO2
Si DatoliteCaB(SiO4)(OH)
Si Amphibole Supergroup (var: Byssolite)AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Si LaumontiteCaAl2Si4O12 · 4H2O
Si PrehniteCa2Al2Si3O10(OH)2
Si Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Si PectoliteNaCa2Si3O8(OH)
SSulfur
S BaryteBaSO4
S AnhydriteCaSO4
S ChalcopyriteCuFeS2
S GalenaPbS
S ChalcociteCu2S
S BorniteCu5FeS4
S SphaleriteZnS
S DevillineCaCu4(SO4)2(OH)6 · 3H2O
S AnglesitePbSO4
S CovelliteCuS
ClChlorine
Cl Amphibole Supergroup (var: Byssolite)AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Cl Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
KPotassium
K K Feldspar (var: Adularia)KAlSi3O8
CaCalcium
Ca AragoniteCaCO3
Ca DolomiteCaMg(CO3)2
Ca CalciteCaCO3
Ca AnhydriteCaSO4
Ca DatoliteCaB(SiO4)(OH)
Ca LaumontiteCaAl2Si4O12 · 4H2O
Ca PrehniteCa2Al2Si3O10(OH)2
Ca PectoliteNaCa2Si3O8(OH)
Ca DevillineCaCu4(SO4)2(OH)6 · 3H2O
TiTitanium
Ti Amphibole Supergroup (var: Byssolite)AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Ti Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
FeIron
Fe SideriteFeCO3
Fe ChalcopyriteCuFeS2
Fe Goethiteα-Fe3+O(OH)
Fe HematiteFe2O3
Fe BorniteCu5FeS4
CuCopper
Cu MalachiteCu2(CO3)(OH)2
Cu AzuriteCu3(CO3)2(OH)2
Cu ChalcopyriteCuFeS2
Cu CopperCu
Cu ChalcociteCu2S
Cu BorniteCu5FeS4
Cu CupriteCu2O
Cu Aurichalcite(Zn,Cu)5(CO3)2(OH)6
Cu DevillineCaCu4(SO4)2(OH)6 · 3H2O
Cu CovelliteCuS
ZnZinc
Zn SphaleriteZnS
Zn Aurichalcite(Zn,Cu)5(CO3)2(OH)6
BaBarium
Ba BaryteBaSO4
PbLead
Pb GalenaPbS
Pb CerussitePbCO3
Pb AnglesitePbSO4

References

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Januzzi, Ronald E. (1976), Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.
Gray, Norman H. (1982): Copper Occurrences In The Hartford Basin Of Northern Connecticut. In Guidebook for Fieldtrips in Connecticut and South Central Massachusetts, New England Intercollegiate Geological Conference, 74th Annual Meeting, Connecticut Department Of Environmental Protection Guidebook No. 5: 195-211.
Miller, F. W. (circa 1986), Hydrothermal Quartz and Barite Veins in the Basalt of New Britain, Connecticut. Harvard University Mineralogical Musum Association.
Hubert, John F., Paul E. Feshbach-Meriney and Michael A. Smith. (1992). The Triassic-Jurassic Hartford Rift Basin, Connecticut and Massachusetts: Evolution, Sandstone Diagenesis, and Hydrocarbon History. AAPG Bulletin: 76(11).
Scovil, Jeffrey. (2008): Minerals of the Ellis Street Extension Road Cut, Route 72, New Britain, Connecticut. Rocks & Minerals: 83(2): 152-160.

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