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Interstate 290/Interstate 495 interchange road cuts, Marlborough, Middlesex County, Massachusetts, USAi
Regional Level Types
Interstate 290/Interstate 495 interchange road cutsGroup of Road Cuttings
MarlboroughTown
Middlesex CountyCounty
MassachusettsState
USACountry

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Latitude & Longitude (WGS84):
42° 21' 47'' North , 71° 35' 26'' West
Latitude & Longitude (decimal):
Type:
Group of Road Cuttings
Nearest Settlements:
PlacePopulationDistance
Marlborough39,818 (2017)3.7km
Hudson14,907 (2017)3.8km
Berlin2,422 (2017)4.3km
Northborough6,167 (2017)6.4km
Bolton4,220 (2017)7.9km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Worcester Mineral ClubWorcester, Massachusetts21km
Nashoba Valley Mineralogical SocietyWestford, Massachusetts27km
Boston Mineral Club, Inc.Boston, Massachusetts44km
Mindat Locality ID:
7173
Long-form identifier:
mindat:1:2:7173:7
GUID (UUID V4):
0


Large road cuts at and near the junction of Interstate 290 and Interstate 495. There were three phases of construction: 1970, 1973 and 1980.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


33 valid minerals.

Detailed Mineral List:

Actinolite
Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Albite
Formula: Na(AlSi3O8)
Allanite-(Ce)
Formula: (CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
'Allanite Group'
Formula: (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
Almandine
Formula: Fe2+3Al2(SiO4)3
Anhydrite
Formula: CaSO4
Autunite
Formula: Ca(UO2)2(PO4)2 · 10-12H2O
'Axinite Group'
Calcite
Formula: CaCO3
'Chabazite'
'Chabazite var. Phacolite'
Chabazite-Ca
Formula: (Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Chabazite-K
Formula: (K2,Ca,Na2,Sr,Mg)2[Al2Si4O12]2 · 12H2O
Dolomite
Formula: CaMg(CO3)2
Dolomite var. Iron-bearing Dolomite
Formula: Ca(Mg,Fe)(CO3)2
Description: The primary carbonate in crystals filling gash veins at the locality is ferroan dolomite. It was thought to be siderite but chemical analysis showed only a 10% siderite molecule, and the specific gravity was too low. (Anderson, John R. (1976). Collecting at the I-295 & I-495 Roadcut, Marlborough MA, Greater Boston Gem Mineral Show program guidebook)
Euxenite-(Y) ?
Formula: (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Fluorapatite
Formula: Ca5(PO4)3F
'Fluor-uvite-Uvite Series'
Goethite
Formula: Fe3+O(OH)
Gypsum
Formula: CaSO4 · 2H2O
Hematite
Formula: Fe2O3
Ilmenite
Formula: Fe2+TiO3
Magnetite
Formula: Fe2+Fe3+2O4
Marcasite
Formula: FeS2
Meionite
Formula: Ca4Al6Si6O24CO3
Molybdenite
Formula: MoS2
Monazite-(Ce)
Formula: Ce(PO4)
Native Copper
Formula: Cu
Natrolite
Formula: Na2Al2Si3O10 · 2H2O
Prehnite
Formula: Ca2Al2Si3O10(OH)2
'Pumpellyite Subgroup'
Formula: Ca2XAl2[Si2O6(OH)][SiO4](OH)2A
Pyrite
Formula: FeS2
Quartz
Formula: SiO2
Quartz var. Smoky Quartz
Formula: SiO2
Rutile
Formula: TiO2
'Scapolite'
Schorl
Formula: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
Siderite ?
Formula: FeCO3
Description: Chemical anlaysis of the common gash vein -filling crystals proved the carbonate to be ferroan dolomite. It is unknown if siderite has ever been confirmed at the locality. Ref: Anderson, John R. (1976). Collecting at the I-295 & I-495 Roadcut, Marlborough MA (Greater Boston Gem Mineral Show program guidebook)
Spessartine
Formula: Mn2+3Al2(SiO4)3
Titanite
Formula: CaTi(SiO4)O
Tremolite
Formula: ◻Ca2Mg5(Si8O22)(OH)2
Xenotime-(Y)
Formula: Y(PO4)
Description: Doubly terminated crystals to 2 x 0.3 cm

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Native Copper1.AA.05Cu
Group 2 - Sulphides and Sulfosalts
Molybdenite2.EA.30MoS2
Pyrite2.EB.05aFeS2
Marcasite2.EB.10aFeS2
Group 4 - Oxides and Hydroxides
Goethite4.00.Fe3+O(OH)
Magnetite4.BB.05Fe2+Fe3+2O4
Hematite4.CB.05Fe2O3
Ilmenite4.CB.05Fe2+TiO3
Quartz4.DA.05SiO2
var. Smoky Quartz4.DA.05SiO2
Rutile4.DB.05TiO2
Euxenite-(Y) ?4.DG.05(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Siderite ?5.AB.05FeCO3
Dolomite5.AB.10CaMg(CO3)2
var. Iron-bearing Dolomite5.AB.10Ca(Mg,Fe)(CO3)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Anhydrite7.AD.30CaSO4
Gypsum7.CD.40CaSO4 · 2H2O
Group 8 - Phosphates, Arsenates and Vanadates
Xenotime-(Y)8.AD.35Y(PO4)
Monazite-(Ce)8.AD.50Ce(PO4)
Fluorapatite8.BN.05Ca5(PO4)3F
Autunite8.EB.05Ca(UO2)2(PO4)2 · 10-12H2O
Group 9 - Silicates
Almandine9.AD.25Fe2+3Al2(SiO4)3
Spessartine9.AD.25Mn2+3Al2(SiO4)3
Titanite9.AG.15CaTi(SiO4)O
Allanite-(Ce)9.BG.05b(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Schorl9.CK.05NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
Actinolite9.DE.10◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Tremolite9.DE.10◻Ca2Mg5(Si8O22)(OH)2
Prehnite9.DP.20Ca2Al2Si3O10(OH)2
Albite9.FA.35Na(AlSi3O8)
Meionite9.FB.15Ca4Al6Si6O24CO3
Natrolite9.GA.05Na2Al2Si3O10 · 2H2O
Chabazite-Ca9.GD.10(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Chabazite-K9.GD.10(K2,Ca,Na2,Sr,Mg)2[Al2Si4O12]2 · 12H2O
Unclassified
'Chabazite'-
'Pumpellyite Subgroup'-Ca2XAl2[Si2O6(OH)][SiO4](OH)2A
'Fluor-uvite-Uvite Series'-
'Scapolite'-
'Chabazite
var. Phacolite'
-
'Axinite Group'-
'Allanite Group'-(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)

List of minerals for each chemical element

HHydrogen
H Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
H Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
H AutuniteCa(UO2)2(PO4)2 · 10-12H2O
H GoethiteFe3+O(OH)
H GypsumCaSO4 · 2H2O
H NatroliteNa2Al2Si3O10 · 2H2O
H PrehniteCa2Al2Si3O10(OH)2
H Pumpellyite SubgroupCa2XAl2[Si2O6(OH)][SiO4](OH)2A
H SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
H Tremolite◻Ca2Mg5(Si8O22)(OH)2
H Fluor-uvite-Uvite Series
H Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
H Chabazite-K(K2,Ca,Na2,Sr,Mg)2[Al2Si4O12]2 · 12H2O
H Allanite Group(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
BBoron
B SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
B Fluor-uvite-Uvite Series
CCarbon
C CalciteCaCO3
C DolomiteCaMg(CO3)2
C MeioniteCa4Al6Si6O24CO3
C SideriteFeCO3
C Dolomite var. Iron-bearing DolomiteCa(Mg,Fe)(CO3)2
OOxygen
O Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
O AlbiteNa(AlSi3O8)
O Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
O AnhydriteCaSO4
O AutuniteCa(UO2)2(PO4)2 · 10-12H2O
O AlmandineFe32+Al2(SiO4)3
O CalciteCaCO3
O DolomiteCaMg(CO3)2
O Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
O FluorapatiteCa5(PO4)3F
O GoethiteFe3+O(OH)
O GypsumCaSO4 · 2H2O
O HematiteFe2O3
O IlmeniteFe2+TiO3
O MagnetiteFe2+Fe23+O4
O MeioniteCa4Al6Si6O24CO3
O Monazite-(Ce)Ce(PO4)
O NatroliteNa2Al2Si3O10 · 2H2O
O PrehniteCa2Al2Si3O10(OH)2
O Pumpellyite SubgroupCa2XAl2[Si2O6(OH)][SiO4](OH)2A
O QuartzSiO2
O RutileTiO2
O SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
O SideriteFeCO3
O Quartz var. Smoky QuartzSiO2
O SpessartineMn32+Al2(SiO4)3
O TitaniteCaTi(SiO4)O
O Tremolite◻Ca2Mg5(Si8O22)(OH)2
O Fluor-uvite-Uvite Series
O Xenotime-(Y)Y(PO4)
O Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
O Chabazite-K(K2,Ca,Na2,Sr,Mg)2[Al2Si4O12]2 · 12H2O
O Dolomite var. Iron-bearing DolomiteCa(Mg,Fe)(CO3)2
O Allanite Group(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
FFluorine
F FluorapatiteCa5(PO4)3F
F Fluor-uvite-Uvite Series
NaSodium
Na AlbiteNa(AlSi3O8)
Na NatroliteNa2Al2Si3O10 · 2H2O
Na SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Na Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Na Chabazite-K(K2,Ca,Na2,Sr,Mg)2[Al2Si4O12]2 · 12H2O
MgMagnesium
Mg Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Mg DolomiteCaMg(CO3)2
Mg Tremolite◻Ca2Mg5(Si8O22)(OH)2
Mg Fluor-uvite-Uvite Series
Mg Chabazite-K(K2,Ca,Na2,Sr,Mg)2[Al2Si4O12]2 · 12H2O
Mg Dolomite var. Iron-bearing DolomiteCa(Mg,Fe)(CO3)2
AlAluminium
Al AlbiteNa(AlSi3O8)
Al Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Al AlmandineFe32+Al2(SiO4)3
Al MeioniteCa4Al6Si6O24CO3
Al NatroliteNa2Al2Si3O10 · 2H2O
Al PrehniteCa2Al2Si3O10(OH)2
Al Pumpellyite SubgroupCa2XAl2[Si2O6(OH)][SiO4](OH)2A
Al SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Al SpessartineMn32+Al2(SiO4)3
Al Fluor-uvite-Uvite Series
Al Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Al Chabazite-K(K2,Ca,Na2,Sr,Mg)2[Al2Si4O12]2 · 12H2O
SiSilicon
Si Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Si AlbiteNa(AlSi3O8)
Si Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Si AlmandineFe32+Al2(SiO4)3
Si MeioniteCa4Al6Si6O24CO3
Si NatroliteNa2Al2Si3O10 · 2H2O
Si PrehniteCa2Al2Si3O10(OH)2
Si Pumpellyite SubgroupCa2XAl2[Si2O6(OH)][SiO4](OH)2A
Si QuartzSiO2
Si SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Si Quartz var. Smoky QuartzSiO2
Si SpessartineMn32+Al2(SiO4)3
Si TitaniteCaTi(SiO4)O
Si Tremolite◻Ca2Mg5(Si8O22)(OH)2
Si Fluor-uvite-Uvite Series
Si Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Si Chabazite-K(K2,Ca,Na2,Sr,Mg)2[Al2Si4O12]2 · 12H2O
Si Allanite Group(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
PPhosphorus
P AutuniteCa(UO2)2(PO4)2 · 10-12H2O
P FluorapatiteCa5(PO4)3F
P Monazite-(Ce)Ce(PO4)
P Xenotime-(Y)Y(PO4)
SSulfur
S AnhydriteCaSO4
S GypsumCaSO4 · 2H2O
S MarcasiteFeS2
S MolybdeniteMoS2
S PyriteFeS2
KPotassium
K Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
K Chabazite-K(K2,Ca,Na2,Sr,Mg)2[Al2Si4O12]2 · 12H2O
CaCalcium
Ca Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Ca Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Ca AnhydriteCaSO4
Ca AutuniteCa(UO2)2(PO4)2 · 10-12H2O
Ca CalciteCaCO3
Ca DolomiteCaMg(CO3)2
Ca Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Ca FluorapatiteCa5(PO4)3F
Ca GypsumCaSO4 · 2H2O
Ca MeioniteCa4Al6Si6O24CO3
Ca PrehniteCa2Al2Si3O10(OH)2
Ca Pumpellyite SubgroupCa2XAl2[Si2O6(OH)][SiO4](OH)2A
Ca TitaniteCaTi(SiO4)O
Ca Tremolite◻Ca2Mg5(Si8O22)(OH)2
Ca Fluor-uvite-Uvite Series
Ca Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Ca Chabazite-K(K2,Ca,Na2,Sr,Mg)2[Al2Si4O12]2 · 12H2O
Ca Dolomite var. Iron-bearing DolomiteCa(Mg,Fe)(CO3)2
TiTitanium
Ti Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Ti IlmeniteFe2+TiO3
Ti RutileTiO2
Ti TitaniteCaTi(SiO4)O
MnManganese
Mn SpessartineMn32+Al2(SiO4)3
FeIron
Fe Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Fe Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Fe AlmandineFe32+Al2(SiO4)3
Fe GoethiteFe3+O(OH)
Fe HematiteFe2O3
Fe IlmeniteFe2+TiO3
Fe MagnetiteFe2+Fe23+O4
Fe MarcasiteFeS2
Fe PyriteFeS2
Fe SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Fe SideriteFeCO3
Fe Dolomite var. Iron-bearing DolomiteCa(Mg,Fe)(CO3)2
CuCopper
Cu Native CopperCu
SrStrontium
Sr Chabazite-K(K2,Ca,Na2,Sr,Mg)2[Al2Si4O12]2 · 12H2O
YYttrium
Y Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Y Xenotime-(Y)Y(PO4)
NbNiobium
Nb Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
MoMolybdenum
Mo MolybdeniteMoS2
CeCerium
Ce Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Ce Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Ce Monazite-(Ce)Ce(PO4)
TaTantalum
Ta Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
ThThorium
Th Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
UUranium
U AutuniteCa(UO2)2(PO4)2 · 10-12H2O
U Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6

Mindat Articles

Description of Minerals at the Interstate 290 and 495 intersection, Marlborough by steven garza


Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate

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