Vote for your favorite mineral in #MinCup26! - Hafnon vs. Putnisite
It's a pair of tiny minerals of unusual chemistry as orange Hafnon battles with purple Putnisite.
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

Promegn, Cama Valley, Cama, Moesa Region, Grisons, Switzerlandi
Regional Level Types
Promegn- not defined -
Cama ValleyValley
CamaMunicipality
Moesa RegionRegion
GrisonsCanton
SwitzerlandCountry

This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearch
Latitude & Longitude (WGS84):
46° 16' 1'' North , 9° 12' 14'' East
Latitude & Longitude (decimal):
46.26714,9.20413
GeoHash:
G#: u0nx1qwjx
GRN:
N31E05
Köppen climate type:
Dfc : Subarctic climate
Nearest Settlements:
PlacePopulationDistance
Cama469 (2017)2.7km
Verdabbio157 (2017)3.6km
Grono896 (2017)4.8km
Lostallo691 (2017)5.1km
Roveredo129 (2017)6.8km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Club Cercatori di Minerali e Fossili TicinoViganello, Ticino33km
Mindat Locality ID:
302686
Long-form identifier:
mindat:1:2:302686:4
GUID (UUID V4):
0
Name(s) in local language(s):
Promegn, Val Cama, Cama, Moesa (Moesano), Val Mesolcina (Valle Mesolcina; Misox), Graubünden (Grisons; Grischun; Grigioni), Schweiz (Suisse; Svizzera)


Ultramafic body at Promegn, on the right side of the middle Cama Valley at the border between the municipal territories of Cama and Grono (formerly Verdabbio), forming a subvertical sheet about 100 m in thickness, accompanied on both sides by concordant marbles and calcsilicate rocks five to twenty metres in thickness. It outcrops over a length of more than two kilometres (Trommsdorff & Evans, 1969).

Locally the ultramafics are inhomogeneous and rich in hydrous phases such as talc, anthophyllite and tremolite, and these often occur in zoned veins cross-cutting the body. However, most of the ultramafic sheet is composed of magnetite-chlorite-enstatite-forsterite schist. The grade of metamorphism in this area is given by the occurrence of the parageneses anorthite-calcite and diopside-calcite-quartz in the adjacent marbles, and by the occurrence of predominant kyanite and locally of fibrolitic sillimanite in pelitic schists.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


12 valid minerals.

Detailed Mineral List:

ⓘ Anorthite
Formula: Ca(Al2Si2O8)
ⓘ Anthophyllite
Formula: ◻{Mg2}{Mg5}(Si8O22)(OH)2
ⓘ Calcite
Formula: CaCO3
ⓘ 'Chlorite Group'
ⓘ Diopside
Formula: CaMgSi2O6
ⓘ Enstatite
Formula: Mg2Si2O6
ⓘ Forsterite
Formula: Mg2SiO4
ⓘ Kyanite
Formula: Al2(SiO4)O
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Quartz
Formula: SiO2
ⓘ Sillimanite
Formula: Al2(SiO4)O
ⓘ Talc
Formula: Mg3Si4O10(OH)2
ⓘ Tremolite
Formula: ◻Ca2Mg5(Si8O22)(OH)2

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘQuartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
Group 9 - Silicates
ⓘForsterite9.AC.05Mg2SiO4
ⓘSillimanite9.AF.05Al2(SiO4)O
ⓘKyanite9.AF.15Al2(SiO4)O
ⓘEnstatite9.DA.05Mg2Si2O6
ⓘDiopside9.DA.15CaMgSi2O6
ⓘAnthophyllite9.DD.05◻{Mg2}{Mg5}(Si8O22)(OH)2
ⓘTremolite9.DE.10◻Ca2Mg5(Si8O22)(OH)2
ⓘTalc9.EC.05Mg3Si4O10(OH)2
ⓘAnorthite9.FA.35Ca(Al2Si2O8)
Unclassified
ⓘ'Chlorite Group'-

List of minerals for each chemical element

HHydrogen
Hⓘ Anthophyllite◻{Mg2}{Mg5}(Si8O22)(OH)2
Hⓘ TalcMg3Si4O10(OH)2
Hⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
CCarbon
Cⓘ CalciteCaCO3
OOxygen
Oⓘ AnorthiteCa(Al2Si2O8)
Oⓘ Anthophyllite◻{Mg2}{Mg5}(Si8O22)(OH)2
Oⓘ CalciteCaCO3
Oⓘ DiopsideCaMgSi2O6
Oⓘ EnstatiteMg2Si2O6
Oⓘ ForsteriteMg2SiO4
Oⓘ KyaniteAl2(SiO4)O
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ QuartzSiO2
Oⓘ SillimaniteAl2(SiO4)O
Oⓘ TalcMg3Si4O10(OH)2
Oⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
MgMagnesium
Mgⓘ Anthophyllite◻{Mg2}{Mg5}(Si8O22)(OH)2
Mgⓘ DiopsideCaMgSi2O6
Mgⓘ EnstatiteMg2Si2O6
Mgⓘ ForsteriteMg2SiO4
Mgⓘ TalcMg3Si4O10(OH)2
Mgⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
AlAluminium
Alⓘ AnorthiteCa(Al2Si2O8)
Alⓘ KyaniteAl2(SiO4)O
Alⓘ SillimaniteAl2(SiO4)O
SiSilicon
Siⓘ AnorthiteCa(Al2Si2O8)
Siⓘ Anthophyllite◻{Mg2}{Mg5}(Si8O22)(OH)2
Siⓘ DiopsideCaMgSi2O6
Siⓘ EnstatiteMg2Si2O6
Siⓘ ForsteriteMg2SiO4
Siⓘ KyaniteAl2(SiO4)O
Siⓘ QuartzSiO2
Siⓘ SillimaniteAl2(SiO4)O
Siⓘ TalcMg3Si4O10(OH)2
Siⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
CaCalcium
Caⓘ AnorthiteCa(Al2Si2O8)
Caⓘ CalciteCaCO3
Caⓘ DiopsideCaMgSi2O6
Caⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
FeIron
Feⓘ MagnetiteFe2+Fe23+O4

Other Regions, Features and Areas containing this locality

Eurasian PlateTectonic Plate
  • AlpsAccretionary Complex
EuropeContinent
Switzerland

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

Trommsdorff, V., Evans, B.W. (1969) The stable association enstatite-forsterite-chlorite in amphibolite facies ultramafics of the Lepontine Alps. Schweizerische Mineralogische und Petrographische Mitteilungen, 49, 2, 325-332.
Quick NavTopMineral ListOther RegionsReferences
 
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 9, 2026 01:56:09 Page updated: August 16, 2025 21:41:21
Go to top of page