Vote for your favorite mineral in #MinCup26! - Cuprite vs. Orpiment
It's a fiery match of vibrant red Cuprite and just as saturated orange Orpiment battle for 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

Monte Eyehorn pegmatites (Monte Ehie Horn pegmatites), Valstrona, Verbano-Cusio-Ossola Province, Piedmont, Italyi
Regional Level Types
Monte Eyehorn pegmatites (Monte Ehie Horn pegmatites)Outcrop
ValstronaCommune
Verbano-Cusio-Ossola ProvinceProvince
PiedmontRegion
ItalyCountry

This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearch
Latitude & Longitude (WGS84):
45° 56' 54'' North , 8° 20' 38'' East
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Luzzogno402 (2014)3.8km
Massiola119 (2014)4.4km
Strona186 (2016)4.5km
Forno211 (2014)4.5km
Anzola d'Ossola438 (2014)4.5km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Club Cercatori di Minerali e Fossili TicinoViganello, Ticino49km
Mindat Locality ID:
415884
Long-form identifier:
mindat:1:2:415884:7
GUID (UUID V4):
0


Pegmatites containing large amphibole crystals near the summit of Monte Eyehorn (or Ehie Horn).

The outcrop of the main pegmatite body measures ca. 30 m in length and reach 120 cm in maximum thickness. Other minor pegmatitic bodies crop out in the area. The pegmatite bodies are separated from the embedding rock (a pyrossenic amphibolite rich in scapolite) by a 2- to 7-cm-thick layer, exclusively made of biotite and chlorite.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


6 valid minerals.

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:

Albite
Formula: Na(AlSi3O8)
Albite var. Andesine
Formula: (Na,Ca)[Al(Si,Al)Si2O8]
'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Calcite
Formula: CaCO3
'Chlorite Group'
'Hornblende Root Name Group'
Formula: ◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
Meionite
Formula: Ca4Al6Si6O24CO3
'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
Quartz
Formula: SiO2
Titanite
Formula: CaTi(SiO4)O

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Group 9 - Silicates
Titanite9.AG.15CaTi(SiO4)O
Augite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
Albite9.FA.35Na(AlSi3O8)
var. Andesine9.FA.35(Na,Ca)[Al(Si,Al)Si2O8]
Meionite9.FB.15Ca4Al6Si6O24CO3
Unclassified
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
'Chlorite Group'-
'Hornblende Root Name Group'-◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
'Apatite'-Ca5(PO4)3(Cl/F/OH)

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 Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
H ApatiteCa5(PO4)3(Cl/F/OH)
CCarbon
C CalciteCaCO3
C MeioniteCa4Al6Si6O24CO3
OOxygen
O AlbiteNa(AlSi3O8)
O Albite var. Andesine(Na,Ca)[Al(Si,Al)Si2O8]
O Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
O BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
O CalciteCaCO3
O MeioniteCa4Al6Si6O24CO3
O QuartzSiO2
O TitaniteCaTi(SiO4)O
O Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
O Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
O ApatiteCa5(PO4)3(Cl/F/OH)
FFluorine
F BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
F Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
F ApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
Na AlbiteNa(AlSi3O8)
Na Albite var. Andesine(Na,Ca)[Al(Si,Al)Si2O8]
Na Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
Mg Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mg BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
AlAluminium
Al AlbiteNa(AlSi3O8)
Al Albite var. Andesine(Na,Ca)[Al(Si,Al)Si2O8]
Al BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Al MeioniteCa4Al6Si6O24CO3
Al Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Al Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
Si AlbiteNa(AlSi3O8)
Si Albite var. Andesine(Na,Ca)[Al(Si,Al)Si2O8]
Si Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Si BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Si MeioniteCa4Al6Si6O24CO3
Si QuartzSiO2
Si TitaniteCaTi(SiO4)O
Si Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Si Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
PPhosphorus
P ApatiteCa5(PO4)3(Cl/F/OH)
ClChlorine
Cl Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Cl ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
K BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
CaCalcium
Ca Albite var. Andesine(Na,Ca)[Al(Si,Al)Si2O8]
Ca Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Ca CalciteCaCO3
Ca MeioniteCa4Al6Si6O24CO3
Ca TitaniteCaTi(SiO4)O
Ca Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Ca Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Ca ApatiteCa5(PO4)3(Cl/F/OH)
TiTitanium
Ti BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Ti TitaniteCaTi(SiO4)O
FeIron
Fe Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Fe BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2

Other Regions, Features and Areas containing this locality

Eurasian PlateTectonic Plate
  • AlpsAccretionary Complex
EuropeContinent
Italy

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

 
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 5, 2026 14:55:37 Page updated: July 7, 2025 09:03:33
Go to top of page