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

Holmtjärn Mine, Norsjö, Västerbotten County, Swedeni
Regional Level Types
Holmtjärn MineMine
NorsjöMunicipality
Västerbotten CountyCounty
SwedenCountry

This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearch
Latitude & Longitude (WGS84):
65° 6' 33'' North , 19° 34' 14'' East
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Glommersträsk231 (2017)17.3km
Norsjö2,057 (2017)22.3km
Jörn777 (2017)22.6km
Bastuträsk405 (2017)41.8km
Arvidsjaur4,655 (2017)56.6km
Mindat Locality ID:
10734
Long-form identifier:
mindat:1:2:10734:2
GUID (UUID V4):
0
Name(s) in local language(s):
Holmtjärnsgruvan


Found 1924 during an exploration programme and part of the outcrop was extensively weathered. One sample gave 1152 ppm Au and stories tell that they mined a small portion (<1kton) with some hundred ppm.

Thought as the "real" beginning of the Boliden Company.

Later mined by Boliden Co. 1984 - 1992, main metals produced Cu, Zn, Pb, Au and Ag.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


20 valid minerals.

Detailed Mineral List:

Acanthite
Formula: Ag2S
Arsenopyrite
Formula: FeAsS
Boulangerite
Formula: Pb5Sb4S11
Bournonite
Formula: PbCuSbS3
Chalcopyrite
Formula: CuFeS2
'Chlorite Group'
Covellite
Formula: CuS
Description: Microscopic blebs in the ore.
Galena
Formula: PbS
Gudmundite
Formula: FeSbS
Hematite
Formula: Fe2O3
Marcasite
Formula: FeS2
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Muscovite var. Sericite
Formula: KAl2(AlSi3O10)(OH)2
Native Gold
Formula: Au
Description: As bleds in chalcopyrite
Pyrargyrite
Formula: Ag3SbS3
Description: Occurs exclusively in the pyrite ore
Pyrite
Formula: FeS2
Pyrrhotite
Formula: Fe1-xS
Quartz
Formula: SiO2
Rutile
Formula: TiO2
Description: Grains
Sphalerite
Formula: ZnS
Description: Occurs generally in contact with sphalerite
Stannite
Formula: Cu2FeSnS4
'Tetrahedrite Subgroup'
Formula: Cu6(Cu4C2+2)Sb4S12S
'Tourmaline'
Formula: AD3G6 (T6O18)(BO3)3X3Z
Description: Slender needles in pyrite ore
Valleriite
Formula: (Fe2+,Cu)4(Mg,Al)3S4(OH,O)6
Description: Minute grains in chalcopyrite

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Native Gold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
Acanthite2.BA.35Ag2S
Covellite2.CA.05aCuS
Sphalerite2.CB.05aZnS
Chalcopyrite2.CB.10aCuFeS2
Stannite2.CB.15aCu2FeSnS4
Pyrrhotite2.CC.10Fe1-xS
Galena2.CD.10PbS
Pyrite2.EB.05aFeS2
Marcasite2.EB.10aFeS2
Arsenopyrite2.EB.20FeAsS
Gudmundite2.EB.20FeSbS
Valleriite2.FD.30(Fe2+,Cu)4(Mg,Al)3S4(OH,O)6
Pyrargyrite2.GA.05Ag3SbS3
Bournonite2.GA.50PbCuSbS3
'Tetrahedrite Subgroup'2.GB.05Cu6(Cu4C2+2)Sb4S12S
Boulangerite2.HC.15Pb5Sb4S11
Group 4 - Oxides and Hydroxides
Hematite4.CB.05Fe2O3
Quartz4.DA.05SiO2
Rutile4.DB.05TiO2
Group 9 - Silicates
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
var. Sericite9.EC.15KAl2(AlSi3O10)(OH)2
Unclassified
'Chlorite Group'-
'Tourmaline'-AD3G6 (T6O18)(BO3)3X3Z

List of minerals for each chemical element

HHydrogen
H MuscoviteKAl2(AlSi3O10)(OH)2
H Valleriite(Fe2+,Cu)4(Mg,Al)3S4(OH,O)6
H Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
BBoron
B TourmalineAD3G6 (T6O18)(BO3)3X3Z
OOxygen
O HematiteFe2O3
O MuscoviteKAl2(AlSi3O10)(OH)2
O QuartzSiO2
O RutileTiO2
O TourmalineAD3G6 (T6O18)(BO3)3X3Z
O Valleriite(Fe2+,Cu)4(Mg,Al)3S4(OH,O)6
O Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
MgMagnesium
Mg Valleriite(Fe2+,Cu)4(Mg,Al)3S4(OH,O)6
AlAluminium
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al Valleriite(Fe2+,Cu)4(Mg,Al)3S4(OH,O)6
Al Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
SiSilicon
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si QuartzSiO2
Si Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
SSulfur
S AcanthiteAg2S
S ArsenopyriteFeAsS
S BoulangeritePb5Sb4S11
S BournonitePbCuSbS3
S ChalcopyriteCuFeS2
S CovelliteCuS
S GalenaPbS
S GudmunditeFeSbS
S MarcasiteFeS2
S PyrargyriteAg3SbS3
S PyriteFeS2
S PyrrhotiteFe1-xS
S SphaleriteZnS
S StanniteCu2FeSnS4
S Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
S Valleriite(Fe2+,Cu)4(Mg,Al)3S4(OH,O)6
KPotassium
K MuscoviteKAl2(AlSi3O10)(OH)2
K Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
TiTitanium
Ti RutileTiO2
FeIron
Fe ArsenopyriteFeAsS
Fe ChalcopyriteCuFeS2
Fe GudmunditeFeSbS
Fe HematiteFe2O3
Fe MarcasiteFeS2
Fe PyriteFeS2
Fe PyrrhotiteFe1-xS
Fe StanniteCu2FeSnS4
Fe Valleriite(Fe2+,Cu)4(Mg,Al)3S4(OH,O)6
CuCopper
Cu BournonitePbCuSbS3
Cu ChalcopyriteCuFeS2
Cu CovelliteCuS
Cu StanniteCu2FeSnS4
Cu Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
Cu Valleriite(Fe2+,Cu)4(Mg,Al)3S4(OH,O)6
ZnZinc
Zn SphaleriteZnS
AsArsenic
As ArsenopyriteFeAsS
AgSilver
Ag AcanthiteAg2S
Ag PyrargyriteAg3SbS3
SnTin
Sn StanniteCu2FeSnS4
SbAntimony
Sb BoulangeritePb5Sb4S11
Sb BournonitePbCuSbS3
Sb GudmunditeFeSbS
Sb PyrargyriteAg3SbS3
Sb Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
AuGold
Au Native GoldAu
PbLead
Pb BoulangeritePb5Sb4S11
Pb BournonitePbCuSbS3
Pb GalenaPbS

Other Regions, Features and Areas containing this locality


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 13:43:30 Page updated: August 25, 2025 01:45:40
Go to top of page