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Long Hill, Leominster, Worcester County, Massachusetts, USAi
Regional Level Types
Long HillHill
LeominsterCity
Worcester CountyCounty
MassachusettsState
USACountry

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PhotosMapsSearch
06927590017272041761716.jpg
Public access to Long Hill pegmatite locality.

Long Hill, Leominster, Worcester County, Massachusetts, USA
09759390017272041775697.jpg
View of exposed pegmatite.

Long Hill, Leominster, Worcester County, Massachusetts, USA
08435380017272041797331.jpg
View of exposed pegmatite.

Long Hill, Leominster, Worcester County, Massachusetts, USA
06927590017272041761716.jpg
Public access to Long Hill pegmatite locality.

Long Hill, Leominster, Worcester County, Massachusetts, USA
09759390017272041775697.jpg
View of exposed pegmatite.

Long Hill, Leominster, Worcester County, Massachusetts, USA
08435380017272041797331.jpg
View of exposed pegmatite.

Long Hill, Leominster, Worcester County, Massachusetts, USA
06927590017272041761716.jpg
Public access to Long Hill pegmatite locality.

Long Hill, Leominster, Worcester County, Massachusetts, USA
09759390017272041775697.jpg
View of exposed pegmatite.

Long Hill, Leominster, Worcester County, Massachusetts, USA
Latitude & Longitude (WGS84):
42° 30' 23'' North , 71° 46' 56'' West
Latitude & Longitude (decimal):
42.50639,-71.78222
GeoHash:
G#: drscyd1c8
GRN:
N29W38
Type:
Hill
Köppen climate type:
Dfb : Warm-summer humid continental climate
Nearest Settlements:
PlacePopulationDistance
Leominster41,569 (2017)2.8km
Sterling7,384 (2017)7.8km
Fitchburg40,545 (2017)8.7km
Princeton3,412 (2017)10.1km
South Lancaster1,894 (2017)10.4km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Worcester Mineral ClubWorcester, Massachusetts27km
Nashoba Valley Mineralogical SocietyWestford, Massachusetts29km
Mindat Locality ID:
16926
Long-form identifier:
mindat:1:2:16926:3
GUID (UUID V4):
0


Spodumene-bearing pegmatites are exposed on Long Hill, part of a 2.5 mile and 1000 foot wide belt extending south into Sterling.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


17 valid minerals.

Detailed Mineral List:

ⓘ Albite
Formula: Na(AlSi3O8)
ⓘ Almandine
Formula: Fe2+3Al2(SiO4)3
ⓘ Amblygonite ?
Formula: LiAl(PO4)F
Description: Probably montebrasite.
ⓘ Arsenopyrite
Formula: FeAsS
ⓘ Autunite
Formula: Ca(UO2)2(PO4)2 · 10-12H2O
ⓘ Cassiterite
Formula: SnO2
ⓘ 'Columbite-(Fe)-Columbite-(Mn) Series'
ⓘ Microcline
Formula: K(AlSi3O8)
ⓘ Montebrasite
Formula: LiAl(PO4)(OH)
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Habit: flakes up to 1 inch diameter
ⓘ Pollucite
Formula: (Cs,Na)2(Al2Si4O12) · 2H2O
Habit: irregular masses to 1 inch in diameter
Description: Pollucite was first found in Massachusetts in 1937 by Roscoe J. Whitney of Leominster (Gonyer, 1937).
ⓘ Purpurite ?
Formula: Mn3+(PO4)
ⓘ Pyrite
Formula: FeS2
ⓘ Quartz
Formula: SiO2
ⓘ Quartz var. Milky Quartz
Formula: SiO2
ⓘ Schorl
Formula: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
Description: Black schorl is associated with non-spodumene pegmatites only.
ⓘ Spodumene
Formula: LiAlSi2O6
Habit: "Rectangular plates" 1 to 2 inches long average in outcrops, up to 6 inches. Larger in boulders (primarily at Rocky Hill, Sterling). (Billings & Wolfe, 1944)
Colour: white to buff-colored
ⓘ Staurolite
Formula: Fe2+2Al9Si4O23(OH)
Description: Occurs in schist "country rock" surrounding pegmatites.
ⓘ Topaz
Formula: Al2(SiO4)(F,OH)2
ⓘ 'Tourmaline'
Formula: AD3G6 (T6O18)(BO3)3X3Z
Habit: crystals to 3 inches long
Colour: green to blue
Description: Blue and green crystals are associated with spodumene pegmatites. Black crystals (schorl) are associated with non-spodumene pegmatites on Long Hill.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘPyrite2.EB.05aFeS2
ⓘArsenopyrite2.EB.20FeAsS
Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
ⓘvar. Milky Quartz4.DA.05SiO2
ⓘCassiterite4.DB.05SnO2
Group 8 - Phosphates, Arsenates and Vanadates
ⓘPurpurite ?8.AB.10Mn3+(PO4)
ⓘAmblygonite ?8.BB.05LiAl(PO4)F
ⓘMontebrasite8.BB.05LiAl(PO4)(OH)
ⓘAutunite8.EB.05Ca(UO2)2(PO4)2 · 10-12H2O
Group 9 - Silicates
ⓘAlmandine9.AD.25Fe2+3Al2(SiO4)3
ⓘStaurolite9.AF.30Fe2+2Al9Si4O23(OH)
ⓘTopaz9.AF.35Al2(SiO4)(F,OH)2
ⓘSchorl9.CK.05NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
ⓘSpodumene9.DA.30LiAlSi2O6
ⓘMuscovite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘMicrocline9.FA.30K(AlSi3O8)
ⓘAlbite9.FA.35Na(AlSi3O8)
ⓘPollucite9.GB.05(Cs,Na)2(Al2Si4O12) · 2H2O
Unclassified
ⓘ'Tourmaline'-AD3G6 (T6O18)(BO3)3X3Z
ⓘ'Columbite-(Fe)-Columbite-(Mn) Series'-

List of minerals for each chemical element

HHydrogen
Hⓘ AutuniteCa(UO2)2(PO4)2 · 10-12H2O
Hⓘ MontebrasiteLiAl(PO4)(OH)
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ Pollucite(Cs,Na)2(Al2Si4O12) · 2H2O
Hⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Hⓘ StauroliteFe22+Al9Si4O23(OH)
Hⓘ TopazAl2(SiO4)(F,OH)2
LiLithium
Liⓘ AmblygoniteLiAl(PO4)F
Liⓘ MontebrasiteLiAl(PO4)(OH)
Liⓘ SpodumeneLiAlSi2O6
BBoron
Bⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Bⓘ TourmalineAD3G6 (T6O18)(BO3)3X3Z
OOxygen
Oⓘ AlbiteNa(AlSi3O8)
Oⓘ AmblygoniteLiAl(PO4)F
Oⓘ AutuniteCa(UO2)2(PO4)2 · 10-12H2O
Oⓘ AlmandineFe32+Al2(SiO4)3
Oⓘ CassiteriteSnO2
Oⓘ MicroclineK(AlSi3O8)
Oⓘ MontebrasiteLiAl(PO4)(OH)
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ Pollucite(Cs,Na)2(Al2Si4O12) · 2H2O
Oⓘ PurpuriteMn3+(PO4)
Oⓘ QuartzSiO2
Oⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Oⓘ SpodumeneLiAlSi2O6
Oⓘ StauroliteFe22+Al9Si4O23(OH)
Oⓘ TopazAl2(SiO4)(F,OH)2
Oⓘ TourmalineAD3G6 (T6O18)(BO3)3X3Z
Oⓘ Quartz var. Milky QuartzSiO2
Oⓘ Columbite-(Fe)-Columbite-(Mn) Series
FFluorine
Fⓘ AmblygoniteLiAl(PO4)F
Fⓘ TopazAl2(SiO4)(F,OH)2
NaSodium
Naⓘ AlbiteNa(AlSi3O8)
Naⓘ Pollucite(Cs,Na)2(Al2Si4O12) · 2H2O
Naⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
AlAluminium
Alⓘ AlbiteNa(AlSi3O8)
Alⓘ AmblygoniteLiAl(PO4)F
Alⓘ AlmandineFe32+Al2(SiO4)3
Alⓘ MicroclineK(AlSi3O8)
Alⓘ MontebrasiteLiAl(PO4)(OH)
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ Pollucite(Cs,Na)2(Al2Si4O12) · 2H2O
Alⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Alⓘ SpodumeneLiAlSi2O6
Alⓘ StauroliteFe22+Al9Si4O23(OH)
Alⓘ TopazAl2(SiO4)(F,OH)2
SiSilicon
Siⓘ AlbiteNa(AlSi3O8)
Siⓘ AlmandineFe32+Al2(SiO4)3
Siⓘ MicroclineK(AlSi3O8)
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ Pollucite(Cs,Na)2(Al2Si4O12) · 2H2O
Siⓘ QuartzSiO2
Siⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Siⓘ SpodumeneLiAlSi2O6
Siⓘ StauroliteFe22+Al9Si4O23(OH)
Siⓘ TopazAl2(SiO4)(F,OH)2
Siⓘ Quartz var. Milky QuartzSiO2
PPhosphorus
Pⓘ AmblygoniteLiAl(PO4)F
Pⓘ AutuniteCa(UO2)2(PO4)2 · 10-12H2O
Pⓘ MontebrasiteLiAl(PO4)(OH)
Pⓘ PurpuriteMn3+(PO4)
SSulfur
Sⓘ ArsenopyriteFeAsS
Sⓘ PyriteFeS2
KPotassium
Kⓘ MicroclineK(AlSi3O8)
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Caⓘ AutuniteCa(UO2)2(PO4)2 · 10-12H2O
MnManganese
Mnⓘ PurpuriteMn3+(PO4)
Mnⓘ Columbite-(Fe)-Columbite-(Mn) Series
FeIron
Feⓘ ArsenopyriteFeAsS
Feⓘ AlmandineFe32+Al2(SiO4)3
Feⓘ PyriteFeS2
Feⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Feⓘ StauroliteFe22+Al9Si4O23(OH)
Feⓘ Columbite-(Fe)-Columbite-(Mn) Series
AsArsenic
Asⓘ ArsenopyriteFeAsS
NbNiobium
Nbⓘ Columbite-(Fe)-Columbite-(Mn) Series
SnTin
Snⓘ CassiteriteSnO2
CsCaesium
Csⓘ Pollucite(Cs,Na)2(Al2Si4O12) · 2H2O
UUranium
Uⓘ AutuniteCa(UO2)2(PO4)2 · 10-12H2O

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, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

"Spodumene Becomes News Since Mining-Option Request" Fitchburg Sentinel, p. 16. July 30, 1956.
Richmond, Wallace E., Gonyer, F. A. (1938) On pollucite. American Mineralogist, 23 (11) 783-789
Hess, F. L.; Whitney, R. J.; Trefethen, J.; and Slavin, H. (1943). The Rare Alkalis in New England: Bur. Mines Inf. Circ. 7232.
Billings, M. P. and Wolfe, C. W. (1944): Spodumene Deposits in the Leominster-Sterling Area (USGS Open-File Report 45-88)
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