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!
Log InRegister
Quick Links : The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic TimeExplore Fossils
Minerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral QuizTime Machine
Photo SearchPhoto GalleriesSearch by ColorPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Dundee Falls Kyanite locality, Gorham, Cumberland County, Maine, USAi
Regional Level Types
Dundee Falls Kyanite localityDeposit
GorhamTown
Cumberland CountyCounty
MaineState
USACountry

This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearch
01349970017272023705478.jpg
Dundee Falls Dam

Dundee Falls Kyanite locality, Gorham, Cumberland County, Maine, USA
08439490017272023704579.jpg
Downriver

Dundee Falls Kyanite locality, Gorham, Cumberland County, Maine, USA
06695650017272023711207.jpg
Melanterite

Dundee Falls Kyanite locality, Gorham, Cumberland County, Maine, USA
01349970017272023705478.jpg
Dundee Falls Dam

Dundee Falls Kyanite locality, Gorham, Cumberland County, Maine, USA
08439490017272023704579.jpg
Downriver

Dundee Falls Kyanite locality, Gorham, Cumberland County, Maine, USA
06695650017272023711207.jpg
Melanterite

Dundee Falls Kyanite locality, Gorham, Cumberland County, Maine, USA
01349970017272023705478.jpg
Dundee Falls Dam

Dundee Falls Kyanite locality, Gorham, Cumberland County, Maine, USA
08439490017272023704579.jpg
Downriver

Dundee Falls Kyanite locality, Gorham, Cumberland County, Maine, USA
Latitude & Longitude (WGS84):
43° 46' 39'' North , 70° 27' 9'' West
Latitude & Longitude (decimal):
43.77766,-70.45269
GRN:
N30W37
Type:
Deposit
Köppen climate type:
Dfb : Warm-summer humid continental climate
Nearest Settlements:
PlacePopulationDistance
South Windham1,374 (2017)5.2km
Little Falls708 (2017)5.5km
North Windham4,904 (2017)6.4km
Standish469 (2017)9.2km
Gorham6,882 (2017)10.9km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Maine Mineralogical & Geological SocietyPortland, Maine21km
Oxford County Mineral and Gem AssociationBethel, Maine50km
Mindat Locality ID:
6684
Long-form identifier:
mindat:1:2:6684:9
GUID (UUID V4):
0


Metamorphic deposit with granite pegmatite intrusion. Calc-silicate units occur here, making for an opportunity to collect two species of garnets in one area.

Coordinates from Google Maps describe a point on the Presumpscot River about 400 m below the Dundee Falls Dam and not necessarily the exact "Dundee Falls" collecting locality(ies).

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


8 valid minerals. 1 erroneous literature entry.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Almandine
Formula: Fe2+3Al2(SiO4)3
ⓘ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ Grossular
Formula: Ca3Al2(SiO4)3
References:
Bill Bunn
ⓘ Kyanite
Formula: Al2(SiO4)O
ⓘ Melanterite
Formula: Fe2+(H2O)6SO4 · H2O
ⓘ Quartz
Formula: SiO2
ⓘ Sillimanite
Formula: Al2(SiO4)O
ⓘ Spodumene
Formula: LiAlSi2O6
ⓘ Staurolite
Formula: Fe2+2Al9Si4O23(OH)
ⓘ Vesuvianite
Formula: Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
References:
Bill Bunn

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘMelanterite7.CB.35Fe2+(H2O)6SO4 · H2O
Group 9 - Silicates
ⓘAlmandine9.AD.25Fe2+3Al2(SiO4)3
ⓘGrossular9.AD.25Ca3Al2(SiO4)3
ⓘSillimanite9.AF.05Al2(SiO4)O
ⓘKyanite9.AF.15Al2(SiO4)O
ⓘStaurolite9.AF.30Fe2+2Al9Si4O23(OH)
ⓘVesuvianite9.BG.35Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
ⓘSpodumene ?9.DA.30LiAlSi2O6
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ⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hⓘ MelanteriteFe2+(H2O)6SO4 · H2O
Hⓘ StauroliteFe22+Al9Si4O23(OH)
Hⓘ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
LiLithium
Liⓘ SpodumeneLiAlSi2O6
OOxygen
Oⓘ AlmandineFe32+Al2(SiO4)3
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ GrossularCa3Al2(SiO4)3
Oⓘ KyaniteAl2(SiO4)O
Oⓘ MelanteriteFe2+(H2O)6SO4 · H2O
Oⓘ QuartzSiO2
Oⓘ SillimaniteAl2(SiO4)O
Oⓘ SpodumeneLiAlSi2O6
Oⓘ StauroliteFe22+Al9Si4O23(OH)
Oⓘ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
FFluorine
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
MgMagnesium
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mgⓘ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
AlAluminium
Alⓘ AlmandineFe32+Al2(SiO4)3
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ GrossularCa3Al2(SiO4)3
Alⓘ KyaniteAl2(SiO4)O
Alⓘ SillimaniteAl2(SiO4)O
Alⓘ SpodumeneLiAlSi2O6
Alⓘ StauroliteFe22+Al9Si4O23(OH)
Alⓘ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
SiSilicon
Siⓘ AlmandineFe32+Al2(SiO4)3
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ GrossularCa3Al2(SiO4)3
Siⓘ KyaniteAl2(SiO4)O
Siⓘ QuartzSiO2
Siⓘ SillimaniteAl2(SiO4)O
Siⓘ SpodumeneLiAlSi2O6
Siⓘ StauroliteFe22+Al9Si4O23(OH)
Siⓘ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
SSulfur
Sⓘ MelanteriteFe2+(H2O)6SO4 · H2O
KPotassium
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
CaCalcium
Caⓘ GrossularCa3Al2(SiO4)3
Caⓘ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
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ⓘ MelanteriteFe2+(H2O)6SO4 · H2O
Feⓘ StauroliteFe22+Al9Si4O23(OH)
Feⓘ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9

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.
Quick NavTopMineral ListRock TypesOther Regions
 
and/or  
Mindat.org® is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Mindat® and mindat.org® are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
Content on this site may not be used to train, fine-tune, or otherwise develop artificial intelligence or machine learning models without prior written permission - see our Terms & Conditions.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: September 3, 2026 14:32:42 Page updated: January 17, 2026 10:36:17
Go to top of page