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

Franconia, Grafton County, New Hampshire, USAi
Regional Level Types
FranconiaTown
Grafton CountyCounty
New HampshireState
USACountry

This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearchMineralogy
06137610017272028249039.jpg
Old Man of the Mountain (1911 or earlier)

Cannon Mountain, Franconia, Grafton County, New Hampshire, USA
03846550017272028247807.jpg
Mt Lafayette (2004)

Mount Lafayette, Franconia, Grafton County, New Hampshire, USA
09111780017272028245344.jpg
Old Man of the Mountain (2003)

Cannon Mountain, Franconia, Grafton County, New Hampshire, USA
06137610017272028249039.jpg
Old Man of the Mountain (1911 or earlier)

Cannon Mountain, Franconia, Grafton County, New Hampshire, USA
03846550017272028247807.jpg
Mt Lafayette (2004)

Mount Lafayette, Franconia, Grafton County, New Hampshire, USA
09111780017272028245344.jpg
Old Man of the Mountain (2003)

Cannon Mountain, Franconia, Grafton County, New Hampshire, USA
04457890017272028259519.jpg
Old Man of the Mountain (1911 or earlier)

Cannon Mountain, Franconia, Grafton County, New Hampshire, USA
03846550017272028247807.jpg
Mt Lafayette (2004)

Mount Lafayette, Franconia, Grafton County, New Hampshire, USA
Neighbouring regions:
Lincoln, Grafton County, New Hampshire, USA
Sugar Hill, Grafton County, New Hampshire, USA
Bethlehem, Grafton County, New Hampshire, USA
Easton, Grafton County, New Hampshire, USA
Type:
Town
Largest Settlements:
PlacePopulation
Franconia984 (2017)
Mindat Locality ID:
9277
Long-form identifier:
mindat:1:2:9277:0
GUID (UUID V4):
0


Franconia is a town, incorporated in 1772.

The danaite variety of arsenopyrite (cobalt-bearing arsenopyrite) was first described from a site in the town of Franconia - either the Copper Mine Brook Mine or the Peckett Mine. Which of these two sites is the actual type locality is uncertain, as records only indicate "Franconia." But it should be recognized that it is a locality in Franconia which is the type locality, not the town itself.



Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

Mineral list contains entries from the region specified including sub-localities

27 valid minerals.

Detailed Mineral List:

ⓘ Almandine
Formula: Fe2+3Al2(SiO4)3
ⓘ Arsenopyrite
Formula: FeAsS
ⓘ Arsenopyrite var. Danaite
Formula: (Fe0.90Co0.10)AsS - (Fe0.65Co0.35)AsS
ⓘ Azurite
Formula: Cu3(CO3)2(OH)2
ⓘ Calcite
Formula: CaCO3
ⓘ Chalcopyrite
Formula: CuFeS2
ⓘ Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘ Fayalite
Formula: Fe2+2(SiO4)
ⓘ 'Feldspar Group'
ⓘ Ferrimolybdite
Formula: Fe2(MoO4)3 · nH2O
ⓘ Galena
Formula: PbS
ⓘ Hedenbergite
Formula: CaFe2+Si2O6
ⓘ Hematite
Formula: Fe2O3
ⓘ Ilmenite
Formula: Fe2+TiO3
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Malachite ?
Formula: Cu2(CO3)(OH)2
ⓘ Molybdenite
Formula: MoS2
ⓘ Molybdite ?
Formula: MoO3
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Native Gold
Formula: Au
ⓘ Prehnite ?
Formula: Ca2Al2Si3O10(OH)2
ⓘ Pyrite
Formula: FeS2
ⓘ Quartz
Formula: SiO2
ⓘ Siderite ?
Formula: FeCO3
ⓘ Sillimanite
Formula: Al2(SiO4)O
ⓘ Sphalerite ?
Formula: ZnS
ⓘ Staurolite
Formula: Fe2+2Al9Si4O23(OH)
ⓘ Tremolite
Formula: ◻Ca2Mg5(Si8O22)(OH)2
ⓘ Zoisite
Formula: (CaCa)(AlAlAl)O[Si2O7][SiO4](OH)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Gold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
ⓘSphalerite ?2.CB.05aZnS
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘGalena2.CD.10PbS
ⓘMolybdenite2.EA.30MoS2
ⓘPyrite2.EB.05aFeS2
ⓘArsenopyrite2.EB.20FeAsS
ⓘvar. Danaite2.EB.20(Fe0.90Co0.10)AsS - (Fe0.65Co0.35)AsS
Group 4 - Oxides and Hydroxides
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘHematite4.CB.05Fe2O3
ⓘIlmenite4.CB.05Fe2+TiO3
ⓘQuartz4.DA.05SiO2
ⓘMolybdite ?4.E0.10MoO3
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘSiderite ?5.AB.05FeCO3
ⓘAzurite5.BA.05Cu3(CO3)2(OH)2
ⓘMalachite ?5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘFerrimolybdite7.GB.30Fe2(MoO4)3 · nH2O
Group 9 - Silicates
ⓘFayalite9.AC.05Fe2+2(SiO4)
ⓘAlmandine9.AD.25Fe2+3Al2(SiO4)3
ⓘSillimanite9.AF.05Al2(SiO4)O
ⓘStaurolite9.AF.30Fe2+2Al9Si4O23(OH)
ⓘEpidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘZoisite9.BG.10(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
ⓘHedenbergite9.DA.15CaFe2+Si2O6
ⓘTremolite9.DE.10◻Ca2Mg5(Si8O22)(OH)2
ⓘPrehnite ?9.DP.20Ca2Al2Si3O10(OH)2
ⓘMuscovite9.EC.15KAl2(AlSi3O10)(OH)2
Unclassified
ⓘ'Feldspar Group'-

List of minerals for each chemical element

HHydrogen
Hⓘ AzuriteCu3(CO3)2(OH)2
Hⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Hⓘ FerrimolybditeFe2(MoO4)3 · nH2O
Hⓘ MalachiteCu2(CO3)(OH)2
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ PrehniteCa2Al2Si3O10(OH)2
Hⓘ StauroliteFe22+Al9Si4O23(OH)
Hⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Hⓘ Zoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
CCarbon
Cⓘ AzuriteCu3(CO3)2(OH)2
Cⓘ CalciteCaCO3
Cⓘ MalachiteCu2(CO3)(OH)2
Cⓘ SideriteFeCO3
OOxygen
Oⓘ AzuriteCu3(CO3)2(OH)2
Oⓘ AlmandineFe32+Al2(SiO4)3
Oⓘ CalciteCaCO3
Oⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oⓘ FayaliteFe22+(SiO4)
Oⓘ FerrimolybditeFe2(MoO4)3 · nH2O
Oⓘ HedenbergiteCaFe2+Si2O6
Oⓘ HematiteFe2O3
Oⓘ IlmeniteFe2+TiO3
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ MalachiteCu2(CO3)(OH)2
Oⓘ MolybditeMoO3
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ PrehniteCa2Al2Si3O10(OH)2
Oⓘ QuartzSiO2
Oⓘ SideriteFeCO3
Oⓘ SillimaniteAl2(SiO4)O
Oⓘ StauroliteFe22+Al9Si4O23(OH)
Oⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Oⓘ Zoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
MgMagnesium
Mgⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
AlAluminium
Alⓘ AlmandineFe32+Al2(SiO4)3
Alⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ PrehniteCa2Al2Si3O10(OH)2
Alⓘ SillimaniteAl2(SiO4)O
Alⓘ StauroliteFe22+Al9Si4O23(OH)
Alⓘ Zoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
SiSilicon
Siⓘ AlmandineFe32+Al2(SiO4)3
Siⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Siⓘ FayaliteFe22+(SiO4)
Siⓘ HedenbergiteCaFe2+Si2O6
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ PrehniteCa2Al2Si3O10(OH)2
Siⓘ QuartzSiO2
Siⓘ SillimaniteAl2(SiO4)O
Siⓘ StauroliteFe22+Al9Si4O23(OH)
Siⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Siⓘ Zoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
SSulfur
Sⓘ ArsenopyriteFeAsS
Sⓘ ChalcopyriteCuFeS2
Sⓘ GalenaPbS
Sⓘ MolybdeniteMoS2
Sⓘ PyriteFeS2
Sⓘ SphaleriteZnS
Sⓘ Arsenopyrite var. Danaite(Fe0.90Co0.10)AsS - (Fe0.65Co0.35)AsS
KPotassium
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Caⓘ CalciteCaCO3
Caⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Caⓘ HedenbergiteCaFe2+Si2O6
Caⓘ PrehniteCa2Al2Si3O10(OH)2
Caⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Caⓘ Zoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
TiTitanium
Tiⓘ IlmeniteFe2+TiO3
FeIron
Feⓘ ArsenopyriteFeAsS
Feⓘ AlmandineFe32+Al2(SiO4)3
Feⓘ ChalcopyriteCuFeS2
Feⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Feⓘ FayaliteFe22+(SiO4)
Feⓘ FerrimolybditeFe2(MoO4)3 · nH2O
Feⓘ HedenbergiteCaFe2+Si2O6
Feⓘ HematiteFe2O3
Feⓘ IlmeniteFe2+TiO3
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ PyriteFeS2
Feⓘ SideriteFeCO3
Feⓘ StauroliteFe22+Al9Si4O23(OH)
Feⓘ Arsenopyrite var. Danaite(Fe0.90Co0.10)AsS - (Fe0.65Co0.35)AsS
CoCobalt
Coⓘ Arsenopyrite var. Danaite(Fe0.90Co0.10)AsS - (Fe0.65Co0.35)AsS
CuCopper
Cuⓘ AzuriteCu3(CO3)2(OH)2
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ MalachiteCu2(CO3)(OH)2
ZnZinc
Znⓘ SphaleriteZnS
AsArsenic
Asⓘ ArsenopyriteFeAsS
Asⓘ Arsenopyrite var. Danaite(Fe0.90Co0.10)AsS - (Fe0.65Co0.35)AsS
MoMolybdenum
Moⓘ FerrimolybditeFe2(MoO4)3 · nH2O
Moⓘ MolybdeniteMoS2
Moⓘ MolybditeMoO3
AuGold
Auⓘ Native GoldAu
PbLead
Pbⓘ GalenaPbS

Fossils

This region is too big or complex to display the fossil list, try looking at smaller subregions.

Other Databases

Wikipedia:https://en.wikipedia.org/wiki/Franconia,_New_Hampshire
Wikidata ID:Q2323254
GeoNames ID:5086340

Localities in this Region

USA

Other Regions, Features and Areas that Intersect

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 NavTopCommoditiesMineral ListFossilsOther DatabasesLocalities in RegionOther 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 12:20:12 Page updated: July 23, 2026 15:35:17
Go to top of page