Log InRegister
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreOur ScienceMindat Newsletter [Free Download]Contact Us
Donate to MindatSponsor a PageCorporate SponsorshipSponsored Pages
Learning CenterWhat Is a Mineral?The Most Common Minerals on EarthInformation for EducatorsMindat ArticlesMindat Newsletter [Free Download]The ElementsThe Mineral Quiz
Search FormMinerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDMinerals by CountryAlphabetical Mineral IndexAlphabetical Locality SearchMineral Association SearchList of CountriesLocalities Near MePhoto SearchSearch ArticlesSearch GlossaryThe Rock H. Currier Digital LibraryMore Search Options
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
MineralsPetrologyFossilsMeteoritesGeologic Time
Mining CompaniesStatisticsMineral MuseumsClubs & OrganizationsMineral Shows & EventsDevice SettingsTime Machine
Read DiscussionsIdentification Request
Photo SearchPhoto GalleriesSearch by ColourPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Østhammeren (Osthammeren), Røros, Trøndelag, Norwayi
Regional Level Types
Østhammeren (Osthammeren)Deposit
RørosMunicipality
TrøndelagCounty
NorwayCountry

This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearch
Latitude & Longitude (WGS84):
62° 33' 43'' North , 11° 31' 28'' East
Latitude & Longitude (decimal):
62.56218,11.52465
GRN:
N42E05
Type:
Deposit
Köppen climate type:
Dfc : Subarctic climate
Nearest Settlements:
PlacePopulationDistance
Røros3,496 (2018)7.3km
Os626 (2010)17.1km
Mindat Locality ID:
206648
Long-form identifier:
mindat:1:2:206648:9
GUID (UUID V4):
0
Other/historical names associated with this locality:
Osthammåren
Other Languages:
Norwegian:
Østhammeren, Røros, Trøndelag, Norge


Podiform chromite deposit with PGE mineralization, hosted by a small ultramafic (serpentinite) body of the Feragen complex. ALL PGE phases are found as microscopic grains.

Coordinates are for a mine roughly in the middle. The others can be found at:
62.56177°N 11.52428°E
62.56237°N 11.52466°E
62.56203°N 11.52546°E
62.56218°N 11.52537°E
62.56221°N 11.52554°E
62.56323°N 11.52452°E (prospect?)
62.56144°N 11.52344°E (?)

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


14 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:

ⓘ Awaruite
Formula: Ni3Fe
ⓘ Erlichmanite
Formula: OsS2
Description: Also an Ir-rich erlichmanite has been identified (Nilsson 1990)
ⓘ Heazlewoodite
Formula: Ni3S2
ⓘ Hollingworthite
Formula: (Rh,Pt,Pd)AsS
ⓘ Irarsite
Formula: (Ir,Ru,Rh,Pt)AsS
ⓘ Laurite
Formula: RuS2
ⓘ Native Iridium
Formula: (Ir,Os,Ru)
ⓘ Native Iridium var. Osmiridium
Formula: (Ir,Os,Ru)
ⓘ Native Osmium
Formula: (Os,Ir,Ru)
ⓘ Native Osmium var. Iridosmine
Formula: (Os,Ir)
ⓘ Nickeline
Formula: NiAs
ⓘ Osarsite
Formula: (Os,Ru)AsS
ⓘ Pentlandite
Formula: (NixFey)Σ9S8
ⓘ 'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4
ⓘ Sperrylite
Formula: PtAs2
ⓘ Sperrylite var. Platarsite
Formula: Pt(As,S)2
ⓘ Stibiopalladinite ?
Formula: Pd5Sb2
Description: A Pd-antimonide is reported as "probably stibiopalladinite" by Nilsson 1990.
ⓘ Tolovkite
Formula: IrSbS
ⓘ 'UM1990-17-E:FeIrOsPt'
Formula: Pt2(Ir,Os)Fe<0.65
ⓘ 'UM1990-42-S:IrOsPbPt'
Formula: (Ir,Pt,Pb,Os)2S3 or (Ir,Pt,Pb,Os)3S7 (?)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘAwaruite1.AE.20Ni3Fe
ⓘNative Osmium1.AF.05(Os,Ir,Ru)
ⓘvar. Iridosmine1.AF.05(Os,Ir)
ⓘNative Iridium1.AF.10(Ir,Os,Ru)
ⓘvar. Osmiridium1.AF.10(Ir,Os,Ru)
Group 2 - Sulphides and Sulfosalts
ⓘStibiopalladinite ?2.AC.20aPd5Sb2
ⓘHeazlewoodite2.BB.05Ni3S2
ⓘPentlandite2.BB.15(NixFey)Σ9S8
ⓘNickeline2.CC.05NiAs
ⓘErlichmanite2.EB.05aOsS2
ⓘLaurite2.EB.05aRuS2
ⓘSperrylite
var. Platarsite		2.EB.05aPt(As,S)2
ⓘ2.EB.05aPtAs2
ⓘOsarsite2.EB.20(Os,Ru)AsS
ⓘHollingworthite2.EB.25(Rh,Pt,Pd)AsS
ⓘIrarsite2.EB.25(Ir,Ru,Rh,Pt)AsS
ⓘTolovkite2.EB.25IrSbS
Unclassified
ⓘ'Serpentine Subgroup'-D3[Si2O5](OH)4
ⓘ'UM1990-17-E:FeIrOsPt'-Pt2(Ir,Os)Fe<0.65
ⓘ'UM1990-42-S:IrOsPbPt'-(Ir,Pt,Pb,Os)2S3 or (Ir,Pt,Pb,Os)3S7 (?)

List of minerals for each chemical element

HHydrogen
Hⓘ Serpentine SubgroupD3[Si2O5](OH)4
OOxygen
Oⓘ Serpentine SubgroupD3[Si2O5](OH)4
SiSilicon
Siⓘ Serpentine SubgroupD3[Si2O5](OH)4
SSulfur
Sⓘ ErlichmaniteOsS2
Sⓘ HeazlewooditeNi3S2
Sⓘ Hollingworthite(Rh,Pt,Pd)AsS
Sⓘ Irarsite(Ir,Ru,Rh,Pt)AsS
Sⓘ LauriteRuS2
Sⓘ Osarsite(Os,Ru)AsS
Sⓘ Pentlandite(NixFey)Σ9S8
Sⓘ Sperrylite var. PlatarsitePt(As,S)2
Sⓘ TolovkiteIrSbS
Sⓘ UM1990-42-S:IrOsPbPt(Ir,Pt,Pb,Os)2S3 or (Ir,Pt,Pb,Os)3S7 (?)
FeIron
Feⓘ AwaruiteNi3Fe
Feⓘ Pentlandite(NixFey)Σ9S8
Feⓘ UM1990-17-E:FeIrOsPtPt2(Ir,Os)Fe
NiNickel
Niⓘ AwaruiteNi3Fe
Niⓘ HeazlewooditeNi3S2
Niⓘ NickelineNiAs
Niⓘ Pentlandite(NixFey)Σ9S8
AsArsenic
Asⓘ Hollingworthite(Rh,Pt,Pd)AsS
Asⓘ Irarsite(Ir,Ru,Rh,Pt)AsS
Asⓘ NickelineNiAs
Asⓘ Osarsite(Os,Ru)AsS
Asⓘ Sperrylite var. PlatarsitePt(As,S)2
Asⓘ SperrylitePtAs2
RuRuthenium
Ruⓘ Irarsite(Ir,Ru,Rh,Pt)AsS
Ruⓘ Native Iridium(Ir,Os,Ru)
Ruⓘ LauriteRuS2
Ruⓘ Osarsite(Os,Ru)AsS
Ruⓘ Native Osmium(Os,Ir,Ru)
Ruⓘ Native Iridium var. Osmiridium(Ir,Os,Ru)
RhRhodium
Rhⓘ Hollingworthite(Rh,Pt,Pd)AsS
Rhⓘ Irarsite(Ir,Ru,Rh,Pt)AsS
PdPalladium
Pdⓘ Hollingworthite(Rh,Pt,Pd)AsS
Pdⓘ StibiopalladinitePd5Sb2
SbAntimony
Sbⓘ StibiopalladinitePd5Sb2
Sbⓘ TolovkiteIrSbS
OsOsmium
Osⓘ ErlichmaniteOsS2
Osⓘ Native Iridium(Ir,Os,Ru)
Osⓘ Osarsite(Os,Ru)AsS
Osⓘ Native Osmium(Os,Ir,Ru)
Osⓘ Native Iridium var. Osmiridium(Ir,Os,Ru)
Osⓘ Native Osmium var. Iridosmine(Os,Ir)
Osⓘ UM1990-17-E:FeIrOsPtPt2(Ir,Os)Fe
Osⓘ UM1990-42-S:IrOsPbPt(Ir,Pt,Pb,Os)2S3 or (Ir,Pt,Pb,Os)3S7 (?)
IrIridium
Irⓘ Irarsite(Ir,Ru,Rh,Pt)AsS
Irⓘ Native Iridium(Ir,Os,Ru)
Irⓘ Native Osmium(Os,Ir,Ru)
Irⓘ TolovkiteIrSbS
Irⓘ Native Iridium var. Osmiridium(Ir,Os,Ru)
Irⓘ Native Osmium var. Iridosmine(Os,Ir)
Irⓘ UM1990-17-E:FeIrOsPtPt2(Ir,Os)Fe
Irⓘ UM1990-42-S:IrOsPbPt(Ir,Pt,Pb,Os)2S3 or (Ir,Pt,Pb,Os)3S7 (?)
PtPlatinum
Ptⓘ Hollingworthite(Rh,Pt,Pd)AsS
Ptⓘ Irarsite(Ir,Ru,Rh,Pt)AsS
Ptⓘ Sperrylite var. PlatarsitePt(As,S)2
Ptⓘ SperrylitePtAs2
Ptⓘ UM1990-17-E:FeIrOsPtPt2(Ir,Os)Fe
Ptⓘ UM1990-42-S:IrOsPbPt(Ir,Pt,Pb,Os)2S3 or (Ir,Pt,Pb,Os)3S7 (?)
PbLead
Pbⓘ UM1990-42-S:IrOsPbPt(Ir,Pt,Pb,Os)2S3 or (Ir,Pt,Pb,Os)3S7 (?)

Other Databases

Link to Geological Survey of Norway:4355

Other Regions, Features and Areas containing this locality

Eurasian PlateTectonic Plate
EuropeContinent
ScandinaviaRegion

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

Geological Survey of Norway. The Ore Database. Deposit Area 1640 - 023. Østhammer. (Last updated 16.mai.2006)
Nilsson, L. P. (1990) Platinum-group mineral inclusions in chromitite from the Osthammeren ultramafic tectonite body, South Central Norway. Mineralogy and Petrology, 42 (1) 249-263 doi:10.1007/bf01162694
Nilsson, Lars Petter, Larsen, Rune B. (1998) Edle mineraler i mafiske og ultramafiske bergarter- en oppsummering av platinagruppe mineraler (PGM) funnet i Norge i de senere år. Norsk Bergverksmuseum Skrift, 14. 40-49
Grenne, T., Ihlen, P. M., Vokes, F. M. (1999) Scandinavian Caledonide Metallogeny in a plate tectonic perspective. Mineralium Deposita, 34 (5) 422-471 doi:10.1007/s001260050215
Quick NavTopMineral ListRock TypesOther DatabasesOther 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: October 20, 2026 07:05:34 Page updated: November 6, 2025 12:06:04
Go to top of page