Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Heikkinen Quarry, Greenwood, Oxford County, Maine, USAi
Regional Level Types
Heikkinen QuarryQuarry
GreenwoodTown
Oxford CountyCounty
MaineState
USACountry

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Latitude & Longitude (WGS84):
44° 17' 49'' North , 70° 37' 56'' West
Latitude & Longitude (decimal):
44.29722,-70.63250
GRN:
N30W37
Type:
Quarry
Köppen climate type:
Dfb : Warm-summer humid continental climate
Nearest Settlements:
PlacePopulationDistance
Greenwood834 (2017)2.8km
West Paris1,790 (2017)5.5km
Woodstock1,263 (2017)8.8km
Paris5,073 (2017)11.3km
Norway2,748 (2017)11.6km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Oxford County Mineral and Gem AssociationBethel, Maine13km
Mindat Locality ID:
5928
Long-form identifier:
mindat:1:2:5928:5
GUID (UUID V4):
0


Oxford pegmatite field.
A feldspar mine opened in the 1930s.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


14 valid minerals.

Detailed Mineral List:

ⓘ Albite
Formula: Na(AlSi3O8)
ⓘ Almandine
Formula: Fe2+3Al2(SiO4)3
ⓘ Autunite
Formula: Ca(UO2)2(PO4)2 · 10-12H2O
ⓘ Beryl
Formula: Be3Al2(Si6O18)
ⓘ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ Columbite-(Fe)
Formula: Fe2+Nb2O6
ⓘ Kasolite
Formula: Pb(UO2)(SiO4) · H2O
ⓘ Meta-autunite
Formula: Ca(UO2)2(PO4)2 · 6H2O
ⓘ Microcline
Formula: K(AlSi3O8)
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Opal
Formula: SiO2 · nH2O
ⓘ Opal var. Opal-AN
Formula: SiO2 · nH2O
ⓘ Pyrite
Formula: FeS2
ⓘ Quartz
Formula: SiO2
ⓘ Schorl
Formula: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
ⓘ Zircon
Formula: Zr(SiO4)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘPyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
ⓘOpal
var. Opal-AN		4.DA.10SiO2 · nH2O
ⓘ4.DA.10SiO2 · nH2O
ⓘColumbite-(Fe)4.DB.35Fe2+Nb2O6
Group 8 - Phosphates, Arsenates and Vanadates
ⓘAutunite8.EB.05Ca(UO2)2(PO4)2 · 10-12H2O
ⓘMeta-autunite8.EB.10Ca(UO2)2(PO4)2 · 6H2O
Group 9 - Silicates
ⓘAlmandine9.AD.25Fe2+3Al2(SiO4)3
ⓘZircon9.AD.30Zr(SiO4)
ⓘKasolite9.AK.15Pb(UO2)(SiO4) · H2O
ⓘBeryl9.CJ.05Be3Al2(Si6O18)
ⓘSchorl9.CK.05NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
ⓘMuscovite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘMicrocline9.FA.30K(AlSi3O8)
ⓘAlbite9.FA.35Na(AlSi3O8)
Unclassified
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2

List of minerals for each chemical element

HHydrogen
Hⓘ AutuniteCa(UO2)2(PO4)2 · 10-12H2O
Hⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hⓘ Opal var. Opal-ANSiO2 · nH2O
Hⓘ KasolitePb(UO2)(SiO4) · H2O
Hⓘ Meta-autuniteCa(UO2)2(PO4)2 · 6H2O
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ OpalSiO2 · nH2O
Hⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
BeBeryllium
Beⓘ BerylBe3Al2(Si6O18)
BBoron
Bⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
OOxygen
Oⓘ AlbiteNa(AlSi3O8)
Oⓘ AutuniteCa(UO2)2(PO4)2 · 10-12H2O
Oⓘ AlmandineFe32+Al2(SiO4)3
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ BerylBe3Al2(Si6O18)
Oⓘ Columbite-(Fe)Fe2+Nb2O6
Oⓘ Opal var. Opal-ANSiO2 · nH2O
Oⓘ KasolitePb(UO2)(SiO4) · H2O
Oⓘ Meta-autuniteCa(UO2)2(PO4)2 · 6H2O
Oⓘ MicroclineK(AlSi3O8)
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ OpalSiO2 · nH2O
Oⓘ QuartzSiO2
Oⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Oⓘ ZirconZr(SiO4)
FFluorine
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
NaSodium
Naⓘ AlbiteNa(AlSi3O8)
Naⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
MgMagnesium
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
AlAluminium
Alⓘ AlbiteNa(AlSi3O8)
Alⓘ AlmandineFe32+Al2(SiO4)3
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ BerylBe3Al2(Si6O18)
Alⓘ MicroclineK(AlSi3O8)
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
SiSilicon
Siⓘ AlbiteNa(AlSi3O8)
Siⓘ AlmandineFe32+Al2(SiO4)3
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ BerylBe3Al2(Si6O18)
Siⓘ Opal var. Opal-ANSiO2 · nH2O
Siⓘ KasolitePb(UO2)(SiO4) · H2O
Siⓘ MicroclineK(AlSi3O8)
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ OpalSiO2 · nH2O
Siⓘ QuartzSiO2
Siⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Siⓘ ZirconZr(SiO4)
PPhosphorus
Pⓘ AutuniteCa(UO2)2(PO4)2 · 10-12H2O
Pⓘ Meta-autuniteCa(UO2)2(PO4)2 · 6H2O
SSulfur
Sⓘ PyriteFeS2
KPotassium
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kⓘ MicroclineK(AlSi3O8)
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Caⓘ AutuniteCa(UO2)2(PO4)2 · 10-12H2O
Caⓘ Meta-autuniteCa(UO2)2(PO4)2 · 6H2O
TiTitanium
Tiⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
FeIron
Feⓘ AlmandineFe32+Al2(SiO4)3
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feⓘ Columbite-(Fe)Fe2+Nb2O6
Feⓘ PyriteFeS2
Feⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
ZrZirconium
Zrⓘ ZirconZr(SiO4)
NbNiobium
Nbⓘ Columbite-(Fe)Fe2+Nb2O6
PbLead
Pbⓘ KasolitePb(UO2)(SiO4) · H2O
UUranium
Uⓘ AutuniteCa(UO2)2(PO4)2 · 10-12H2O
Uⓘ KasolitePb(UO2)(SiO4) · H2O
Uⓘ Meta-autuniteCa(UO2)2(PO4)2 · 6H2O

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

Perham Stevens, J. (1972) Maine’s Treasure Chest - Gems & Minerals of Oxford County.
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