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Interstate 290/Interstate 495 interchange road cuts, Marlborough, Middlesex Co., Massachusetts, USAi
Regional Level Types
Interstate 290/Interstate 495 interchange road cutsGroup of Road Cuttings
Marlborough- not defined -
Middlesex Co.County
MassachusettsState
USACountry

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Key
Latitude & Longitude (WGS84):
42° 21' 47'' North , 71° 35' 26'' West
Latitude & Longitude (decimal):
Locality 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


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 Strunz Dana Chemical Elements

Mineral List


33 valid minerals.

Detailed Mineral List:

Actinolite
Formula: ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Reference: Garza, Steve (1980): Routes 495 and 290, Marlborough, Massachusetts (Boston Mineral Club Newsletter Dec., 1980).
Albite
Formula: Na(AlSi3O8)
Reference: Akbite, Collected by L.White 1980 , Dr. Carl Francis, Curator, Harvard University pers. comm. 2009. Allanite, Collected by L.White 1980. Dr. Carl Francis,Curator, Harvard University, pers. comm. 1996. Chabazite (Ca) Var. Phacolite, Collected by L.White 1980. Dr. Carl Francis, Curator, Harvard University, pers. comm. 2010
Allanite-(Ce)
Formula: {CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Reference: Collected by James Parella; EDS by Kerry Day of P. Cristofono sample from specimen
'Allanite Group'
Formula: {A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
Reference: Akbite, Collected by L.White 1980 , Dr. Carl Francis, Curator, Harvard University pers. comm. 2009. Allanite, Collected by L.White 1980. Dr. Carl Francis,Curator, Harvard University, pers. comm. 1996. Chabazite (Ca) Var. Phacolite, Collected by L.White 1980. Dr. Carl Francis, Curator, Harvard University, pers. comm. 2010
Almandine
Formula: Fe2+3Al2(SiO4)3
Reference: [www.johnbetts-fineminerals.com]
Anhydrite
Formula: CaSO4
Reference: Garza, Steve (1980): Routes 495 and 290, Marlborough, Massachusetts (Boston Mineral Club Newsletter Dec., 1980).
Autunite
Formula: Ca(UO2)2(PO4)2 · 11H2O
Reference: Harvard Mineralogical Museum No. 122310
'Axinite Group'
Reference: L. W. White, 1995: Mineralization of Routre 290 Road Cut (Rocks & Minerals May 1997)
Calcite
Formula: CaCO3
Reference: Hrvard Mineralogical Museum No. 125172
'Chabazite'
Reference: Collected by L.White 1980
'Chabazite var: Phacolite'
Reference: Collected by L.White 1980
Chabazite-Ca
Formula: (Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Reference: Harvard Mineralogical Museum, no. 117319.
Chabazite-K
Formula: (K2,Ca,Na2,Sr,Mg)2[Al2Si4O12]2 · 12H2O
Reference: unpublished chemical analysis by Larry White 1980, Dr. Carl Francis, Curator, Harvard University pers. comm. 2009.
Copper
Formula: Cu
Reference: Garza, Steve (1980): Routes 495 and 290, Marlborough, Massachusetts (Boston Mineral Club Newsletter Dec., 1980).
Dolomite
Formula: CaMg(CO3)2
Reference: Gleba, 1978. Mass. Mineral Localities.
Dolomite var: Ferroan 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)
Reference: 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
Reference: L. W. White, 1995: Mineralization of Route 290 Road Cut (Rocks & Minerals May 1997)
Fluorapatite
Formula: Ca5(PO4)3F
Reference: Harvard Mineralogical Museum No.119559
Goethite
Formula: α-Fe3+O(OH)
Reference: Garza, Steve (1980): Routes 495 and 290, Marlborough, Massachusetts (Boston Mineral Club Newsletter Dec., 1980).
Gypsum
Formula: CaSO4 · 2H2O
Reference: Garza, Steve (1980): Routes 495 and 290, Marlborough, Massachusetts (Boston Mineral Club Newsletter Dec., 1980).
Hematite
Formula: Fe2O3
Reference: Collected by L.White.
Ilmenite
Formula: Fe2+TiO3
Reference: L. W. White, 1995: Mineralization of Routre 290 Road Cut (Rocks & Minerals May 1997)
Magnetite
Formula: Fe2+Fe3+2O4
Reference: L. W. White, 1995: Mineralization of Routre 290 Road Cut (Rocks & Minerals May 1997)
Marcasite
Formula: FeS2
Reference: P Cristofono collection
Meionite
Formula: Ca4Al6Si6O24CO3
Reference: Garza, Steve (1980): Routes 495 and 290, Marlborough, Massachusetts (Boston Mineral Club Newsletter Dec., 1980).
Molybdenite
Formula: MoS2
Reference: Collected by L.White.
Monazite-(Ce)
Formula: Ce(PO4)
Reference: S. Pavadore collection
Natrolite
Formula: Na2Al2Si3O10 · 2H2O
Reference: Collected by L.White.
Prehnite
Formula: Ca2Al2Si3O10(OH)2
Reference: Garza, Steve (1980): Routes 495 and 290, Marlborough, Massachusetts (Boston Mineral Club Newsletter Dec., 1980).
'Pumpellyite'
Reference: Harvard Mineralogical Museum No. 124166
Pyrite
Formula: FeS2
Reference: Harvard Mineralogical Museum No.134155
Quartz
Formula: SiO2
Reference: L. W. White, 1995: Mineralization of Routre 290 Road Cut (Rocks & Minerals May 1997)
Quartz var: Smoky Quartz
Formula: SiO2
Reference: Gleba, 1978. Mass. Mineral Localities.
Rutile
Formula: TiO2
Reference: L. W. White, 1995: Mineralization of Routre 290 Road Cut (Rocks & Minerals May 1997)
'Scapolite'
Reference: Harvard Mineralogical Museum No. 124157
Schorl
Formula: Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Reference: L. W. White, 1995: Mineralization of Routre 290 Road Cut (Rocks & Minerals May 1997)
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)
Reference: Harvard Mineralogical Museum No. 119192
Spessartine
Formula: Mn2+3Al2(SiO4)3
Reference: Garza, Steve (1980): Routes 495 and 290, Marlborough, Massachusetts (Boston Mineral Club Newsletter Dec., 1980).
Titanite
Formula: CaTi(SiO4)O
Reference: Garza, Steve (1980): Routes 495 and 290, Marlborough, Massachusetts (Boston Mineral Club Newsletter Dec., 1980).
Tremolite
Formula: ☐{Ca2}{Mg5}(Si8O22)(OH)2
Reference: L. W. White, 1995: Mineralization of Routre 290 Road Cut (Rocks & Minerals May 1997)
'Uvite Series'
Formula: Ca(Mg3)MgAl5(Si6O18)(BO3)3(OH)3(F/OH)
Reference: Akbite, Collected by L.White 1980 , Dr. Carl Francis, Curator, Harvard University pers. comm. 2009. Allanite, Collected by L.White 1980. Dr. Carl Francis,Curator, Harvard University, pers. comm. 1996. Chabazite (Ca) Var. Phacolite, Collected by L.White 1980. Dr. Carl Francis, Curator, Harvard University, pers. comm. 2010
Xenotime-(Y)
Formula: Y(PO4)
Description: Doubly terminated crystals to 2 x 0.3 cm
Reference: Larry White, S. Pavadore, et al. collections

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Copper1.AA.05Cu
Group 2 - Sulphides and Sulfosalts
Marcasite2.EB.10aFeS2
Molybdenite2.EA.30MoS2
Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
Euxenite-(Y) ?4.DG.05(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Goethite4.00.α-Fe3+O(OH)
Hematite4.CB.05Fe2O3
Ilmenite4.CB.05Fe2+TiO3
Magnetite4.BB.05Fe2+Fe3+2O4
Quartz4.DA.05SiO2
var: Smoky Quartz4.DA.05SiO2
Rutile4.DB.05TiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Dolomite5.AB.10CaMg(CO3)2
var: Ferroan Dolomite5.AB.10Ca(Mg,Fe)(CO3)2
Siderite ?5.AB.05FeCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Anhydrite7.AD.30CaSO4
Gypsum7.CD.40CaSO4 · 2H2O
Group 8 - Phosphates, Arsenates and Vanadates
Autunite8.EB.05Ca(UO2)2(PO4)2 · 11H2O
Fluorapatite8.BN.05Ca5(PO4)3F
Monazite-(Ce)8.AD.50Ce(PO4)
Xenotime-(Y)8.AD.35Y(PO4)
Group 9 - Silicates
Actinolite9.DE.10☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Albite9.FA.35Na(AlSi3O8)
Allanite-(Ce)9.BG.05b{CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Almandine9.AD.25Fe2+3Al2(SiO4)3
Chabazite-Ca9.GD.10(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Chabazite-K9.GD.10(K2,Ca,Na2,Sr,Mg)2[Al2Si4O12]2 · 12H2O
Meionite9.FB.15Ca4Al6Si6O24CO3
Natrolite9.GA.05Na2Al2Si3O10 · 2H2O
Prehnite9.DP.20Ca2Al2Si3O10(OH)2
Schorl9.CK.05Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Spessartine9.AD.25Mn2+3Al2(SiO4)3
Titanite9.AG.15CaTi(SiO4)O
Tremolite9.DE.10☐{Ca2}{Mg5}(Si8O22)(OH)2
'Uvite Series'9..Ca(Mg3)MgAl5(Si6O18)(BO3)3(OH)3(F/OH)
Unclassified Minerals, Rocks, etc.
'Allanite Group'-{A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
'Axinite Group'-
'Chabazite'-
'var: Phacolite'-
'Pumpellyite'-
'Scapolite'-

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 = 1:2
Marcasite2.12.2.1FeS2
Molybdenite2.12.10.1MoS2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
Ilmenite4.3.5.1Fe2+TiO3
AX2
Rutile4.4.1.1TiO2
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 8 - MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
AB2O6
Euxenite-(Y) ?8.3.8.2(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Siderite ?14.1.1.3FeCO3
AB(XO3)2
Dolomite14.2.1.1CaMg(CO3)2
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Anhydrite28.3.2.1CaSO4
Group 29 - HYDRATED ACID AND NORMAL SULFATES
AXO4·xH2O
Gypsum29.6.3.1CaSO4 · 2H2O
Group 38 - ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
AXO4
Monazite-(Ce)38.4.3.1Ce(PO4)
Group 40 - HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
AB2(XO4)2·xH2O, containing (UO2)2+
Autunite40.2a.1.1Ca(UO2)2(PO4)2 · 11H2O
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
A5(XO4)3Zq
Fluorapatite41.8.1.1Ca5(PO4)3F
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
Spessartine51.4.3a.3Mn2+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 [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)
Allanite-(Ce)58.2.1a.1{CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with borate groups
Schorl61.3.1.10Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
'Uvite Series'61.3.1.3Ca(Mg3)MgAl5(Si6O18)(BO3)3(OH)3(F/OH)
Group 66 - INOSILICATES Double-Width,Unbranched Chains,(W=2)
Amphiboles - Mg-Fe-Mn-Li subgroup
Tremolite66.1.3a.1☐{Ca2}{Mg5}(Si8O22)(OH)2
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 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Albite76.1.3.1Na(AlSi3O8)
Group 77 - TECTOSILICATES Zeolites
Zeolite group - True zeolites
Chabazite-Ca77.1.2.1(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Natrolite77.1.5.1Na2Al2Si3O10 · 2H2O
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)
'Axinite Group'-
'Chabazite'-
'var: Phacolite'-
Chabazite-K-(K2,Ca,Na2,Sr,Mg)2[Al2Si4O12]2 · 12H2O
Dolomite
var: Ferroan Dolomite
-Ca(Mg,Fe)(CO3)2
Meionite-Ca4Al6Si6O24CO3
'Pumpellyite'-
Quartz
var: Smoky Quartz
-SiO2
'Scapolite'-
Xenotime-(Y)-Y(PO4)

List of minerals for each chemical element

HHydrogen
H AutuniteCa(UO2)2(PO4)2 · 11H2O
H Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
H SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
H Chabazite-K(K2,Ca,Na2,Sr,Mg)2[Al2Si4O12]2 · 12H2O
H Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
H NatroliteNa2Al2Si3O10 · 2H2O
H Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
H Goethiteα-Fe3+O(OH)
H GypsumCaSO4 · 2H2O
H Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
H PrehniteCa2Al2Si3O10(OH)2
H Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
BBoron
B SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
CCarbon
C CalciteCaCO3
C DolomiteCaMg(CO3)2
C Dolomite (var: Ferroan Dolomite)Ca(Mg,Fe)(CO3)2
C MeioniteCa4Al6Si6O24CO3
C SideriteFeCO3
OOxygen
O Xenotime-(Y)Y(PO4)
O AlmandineFe32+Al2(SiO4)3
O FluorapatiteCa5(PO4)3F
O CalciteCaCO3
O DolomiteCaMg(CO3)2
O Quartz (var: Smoky Quartz)SiO2
O AutuniteCa(UO2)2(PO4)2 · 11H2O
O Monazite-(Ce)Ce(PO4)
O MagnetiteFe2+Fe23+O4
O QuartzSiO2
O Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
O IlmeniteFe2+TiO3
O RutileTiO2
O SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
O Chabazite-K(K2,Ca,Na2,Sr,Mg)2[Al2Si4O12]2 · 12H2O
O AlbiteNa(AlSi3O8)
O Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
O HematiteFe2O3
O NatroliteNa2Al2Si3O10 · 2H2O
O Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
O Dolomite (var: Ferroan Dolomite)Ca(Mg,Fe)(CO3)2
O Goethiteα-Fe3+O(OH)
O GypsumCaSO4 · 2H2O
O AnhydriteCaSO4
O TitaniteCaTi(SiO4)O
O MeioniteCa4Al6Si6O24CO3
O Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
O PrehniteCa2Al2Si3O10(OH)2
O SpessartineMn32+Al2(SiO4)3
O Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
O SideriteFeCO3
O Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
FFluorine
F FluorapatiteCa5(PO4)3F
NaSodium
Na SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Na Chabazite-K(K2,Ca,Na2,Sr,Mg)2[Al2Si4O12]2 · 12H2O
Na AlbiteNa(AlSi3O8)
Na NatroliteNa2Al2Si3O10 · 2H2O
Na Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Na MeioniteCa4Al6Si6O24CO3
MgMagnesium
Mg DolomiteCaMg(CO3)2
Mg Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
Mg Chabazite-K(K2,Ca,Na2,Sr,Mg)2[Al2Si4O12]2 · 12H2O
Mg Dolomite (var: Ferroan Dolomite)Ca(Mg,Fe)(CO3)2
Mg Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
AlAluminium
Al AlmandineFe32+Al2(SiO4)3
Al SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Al Chabazite-K(K2,Ca,Na2,Sr,Mg)2[Al2Si4O12]2 · 12H2O
Al AlbiteNa(AlSi3O8)
Al NatroliteNa2Al2Si3O10 · 2H2O
Al Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Al MeioniteCa4Al6Si6O24CO3
Al PrehniteCa2Al2Si3O10(OH)2
Al SpessartineMn32+Al2(SiO4)3
Al Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
SiSilicon
Si AlmandineFe32+Al2(SiO4)3
Si Quartz (var: Smoky Quartz)SiO2
Si QuartzSiO2
Si Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
Si SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Si Chabazite-K(K2,Ca,Na2,Sr,Mg)2[Al2Si4O12]2 · 12H2O
Si AlbiteNa(AlSi3O8)
Si Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
Si NatroliteNa2Al2Si3O10 · 2H2O
Si Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Si TitaniteCaTi(SiO4)O
Si MeioniteCa4Al6Si6O24CO3
Si Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Si PrehniteCa2Al2Si3O10(OH)2
Si SpessartineMn32+Al2(SiO4)3
Si Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
PPhosphorus
P Xenotime-(Y)Y(PO4)
P FluorapatiteCa5(PO4)3F
P AutuniteCa(UO2)2(PO4)2 · 11H2O
P Monazite-(Ce)Ce(PO4)
SSulfur
S PyriteFeS2
S MarcasiteFeS2
S MolybdeniteMoS2
S GypsumCaSO4 · 2H2O
S AnhydriteCaSO4
S MeioniteCa4Al6Si6O24CO3
ClChlorine
Cl MeioniteCa4Al6Si6O24CO3
KPotassium
K Chabazite-K(K2,Ca,Na2,Sr,Mg)2[Al2Si4O12]2 · 12H2O
K Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
CaCalcium
Ca FluorapatiteCa5(PO4)3F
Ca CalciteCaCO3
Ca DolomiteCaMg(CO3)2
Ca AutuniteCa(UO2)2(PO4)2 · 11H2O
Ca Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
Ca Chabazite-K(K2,Ca,Na2,Sr,Mg)2[Al2Si4O12]2 · 12H2O
Ca Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Ca Dolomite (var: Ferroan Dolomite)Ca(Mg,Fe)(CO3)2
Ca GypsumCaSO4 · 2H2O
Ca AnhydriteCaSO4
Ca TitaniteCaTi(SiO4)O
Ca MeioniteCa4Al6Si6O24CO3
Ca Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Ca PrehniteCa2Al2Si3O10(OH)2
Ca Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Ca Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
TiTitanium
Ti IlmeniteFe2+TiO3
Ti RutileTiO2
Ti TitaniteCaTi(SiO4)O
Ti Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
MnManganese
Mn SpessartineMn32+Al2(SiO4)3
FeIron
Fe AlmandineFe32+Al2(SiO4)3
Fe PyriteFeS2
Fe MarcasiteFeS2
Fe MagnetiteFe2+Fe23+O4
Fe IlmeniteFe2+TiO3
Fe SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Fe HematiteFe2O3
Fe Dolomite (var: Ferroan Dolomite)Ca(Mg,Fe)(CO3)2
Fe Goethiteα-Fe3+O(OH)
Fe Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Fe Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Fe SideriteFeCO3
CuCopper
Cu CopperCu
SrStrontium
Sr Chabazite-K(K2,Ca,Na2,Sr,Mg)2[Al2Si4O12]2 · 12H2O
YYttrium
Y Xenotime-(Y)Y(PO4)
Y Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
NbNiobium
Nb Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
MoMolybdenum
Mo MolybdeniteMoS2
CeCerium
Ce Monazite-(Ce)Ce(PO4)
Ce Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Ce Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
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 · 11H2O
U Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6

References

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Garza, Steve (1980): Routes 495 and 290, Marlborough, Massachusetts (Boston Mineral Club Newsletter Dec., 1980).
White, Lawrence W. (1997): Mineralization of Route 290 Road Cut (Rocks & Minerals,, May 1997)
Lawrence White personal collection.

Mindat Articles

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


Other Regions, Features and Areas containg this locality

North America PlateTectonic Plate

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