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State Route 9 & State Route 71 Interchange, New Britain, Hartford County, Connecticut, USAi
Regional Level Types
State Route 9 & State Route 71 InterchangeRoad Cutting
New BritainCity
Hartford CountyCounty
ConnecticutState
USACountry

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Latitude & Longitude (WGS84):
41° 42' 44'' North , 72° 45' 50'' West
Latitude & Longitude (decimal):
41.71250,-72.76389
GeoHash:
G#:drkm21wby
GRN:
N28W40
Type:
Road Cutting
Köppen climate type:
Dfa : Hot-summer humid continental climate
Nearest Settlements:
PlacePopulationDistance
Newington30,562(2017)3.7km
Farmington25,000(2017)5.7km
West Hartford63,268(2017)5.8km
New Britain72,808(2017)5.8km
Kensington8,459(2017)8.6km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Bristol Gem & Mineral ClubBristol, Connecticut16km
Lapidary and Mineral Society of Central ConnecticutMeriden, Connecticut20km
Connecticut Valley Mineral ClubSpringfield, Massachusetts46km
New Haven Mineral ClubNew Haven, Connecticut47km
Mindat Locality ID:
208239
Long-form identifier:
mindat:1:2:208239:7
GUID (UUID V4):
0


In the late 1980s, state Route 9 was built between state Route 175 in New Britain and Interstate 84 in Farmington (this stretch of highway was originally designated Interstate 291 during planning). Route 9 cut through a ridge of Hampden Basalt on the south side of the Hartford Road (state Route 71) overpass just south of the Westfarms Mall. As in other parts of the Hartford basin in the New Britain-Newington area, mineralized normal faults were exposed. During excavation, nice quartz crystals were being hoarded by a few collectors. A little baryte was seen but not much other mineralization.

Construction of the Target store and landscaping at the NE end of the Stanley Golf Course, both just to the south of the interchange, also revealed mineralization and might as well be included here due to their very close proximity and identical geology.

Select Mineral List Type

StandardDetailedGalleryStrunzChemical Elements

Detailed Mineral List:

ⓘBaryte
Formula:BaSO4
Habit: tabular
Colour: white
ⓘCalcite
Formula:CaCO3
ⓘDatolite
Formula:CaB(SiO4)(OH)
Habit: complex, stubby crystals
Colour: colorless to pale yellow-green
Description: lining cavities in basalt
ⓘDolomite
Formula:CaMg(CO3)2
ⓘDolomite var. Iron-bearing Dolomite
Formula:Ca(Mg,Fe)(CO3)2
ⓘGoethite
Formula:Fe3+O(OH)
ⓘGypsum
Formula:CaSO4 · 2H2O
ⓘGypsum var. Satin Spar Gypsum
Formula:CaSO4 · 2H2O
ⓘ'Petroleum var. Bitumen'
ⓘQuartz
Formula:SiO2
ⓘQuartz var. Chalcedony
Formula:SiO2

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘGoethite4.00.Fe3+O(OH)
ⓘQuartz
var. Chalcedony		4.DA.05SiO2
ⓘ4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘDolomite5.AB.10CaMg(CO3)2
ⓘvar. Iron-bearing Dolomite5.AB.10Ca(Mg,Fe)(CO3)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘBaryte7.AD.35BaSO4
ⓘGypsum7.CD.40CaSO4 · 2H2O
ⓘvar. Satin Spar Gypsum7.CD.40CaSO4 · 2H2O
Group 9 - Silicates
ⓘDatolite9.AJ.20CaB(SiO4)(OH)
Unclassified
ⓘ'Petroleum
var. Bitumen'		-

List of minerals for each chemical element

HHydrogen
HⓘDatoliteCaB(SiO4)(OH)
HⓘGoethiteFe3+O(OH)
HⓘGypsumCaSO4 · 2H2O
HⓘGypsum var.Satin Spar GypsumCaSO4 · 2H2O
BBoron
BⓘDatoliteCaB(SiO4)(OH)
CCarbon
CⓘCalciteCaCO3
CⓘDolomiteCaMg(CO3)2
CⓘDolomite var.Iron-bearing DolomiteCa(Mg,Fe)(CO3)2
OOxygen
OⓘBaryteBaSO4
OⓘCalciteCaCO3
OⓘQuartz var.ChalcedonySiO2
OⓘDolomiteCaMg(CO3)2
OⓘDatoliteCaB(SiO4)(OH)
OⓘGoethiteFe3+O(OH)
OⓘGypsumCaSO4 · 2H2O
OⓘQuartzSiO2
OⓘGypsum var.Satin Spar GypsumCaSO4 · 2H2O
OⓘDolomite var.Iron-bearing DolomiteCa(Mg,Fe)(CO3)2
MgMagnesium
MgⓘDolomiteCaMg(CO3)2
MgⓘDolomite var.Iron-bearing DolomiteCa(Mg,Fe)(CO3)2
SiSilicon
SiⓘQuartz var.ChalcedonySiO2
SiⓘDatoliteCaB(SiO4)(OH)
SiⓘQuartzSiO2
SSulfur
SⓘBaryteBaSO4
SⓘGypsumCaSO4 · 2H2O
SⓘGypsum var.Satin Spar GypsumCaSO4 · 2H2O
CaCalcium
CaⓘCalciteCaCO3
CaⓘDolomiteCaMg(CO3)2
CaⓘDatoliteCaB(SiO4)(OH)
CaⓘGypsumCaSO4 · 2H2O
CaⓘGypsum var.Satin Spar GypsumCaSO4 · 2H2O
CaⓘDolomite var.Iron-bearing DolomiteCa(Mg,Fe)(CO3)2
FeIron
FeⓘGoethiteFe3+O(OH)
FeⓘDolomite var.Iron-bearing DolomiteCa(Mg,Fe)(CO3)2
BaBarium
BaⓘBaryteBaSO4

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, pleaseregister so you can add to our database. This locality information is for reference purposes only. You should never attempt tovisit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holdersfor access and that you are aware of all safety precautions necessary.

References

Personal observation of Fred Schuster
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