Vote for your favorite mineral in #MinCup26! - Erythrite vs. Skutterudite
Pretty pink and poisonous Erythrite is against its shiny silver and structurally-useful Skutterudite.
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

Třídomí, Horní Slavkov, Sokolov District, Karlovy Vary Region, Czech Republici
Regional Level Types
TřídomíVillage (Former)
Horní SlavkovMunicipality
Sokolov DistrictDistrict
Karlovy Vary RegionRegion
Czech RepublicCountry

This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearch
Type:
Village (Former) - last checked 2021
Mindat Locality ID:
408023
Long-form identifier:
mindat:1:2:408023:0
GUID (UUID V4):
0
Other/historical names associated with this locality:
Dreihäuser


Třídomí (German Dreihäuser) is a defunct settlement in the Slavkov Forest in the Sokolov district. It stretched below the Krudum hill (838 m above sea level), at an altitude of about 600 m, approximately 4 km west of Horní Slavkov. A translation from the original German name created the Czech name of the settlement in the 1920s. In the 1960s, cottages were built on the site of the defunct settlement, which are used for recreational purposes. Třídomí is a part of Horní Slavkov.

Třídomí is also the name of a cadastral area with an area of ​​5.31 km².

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

20 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

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

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Albite
Formula: Na(AlSi3O8)
Annite
Formula: KFe2+3(AlSi3O10)(OH)2
'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
Beryl
Formula: Be3Al2(Si6O18)
'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Cassiterite
Formula: SnO2
Cheralite
Formula: CaTh(PO4)2
Coffinite
Formula: U(SiO4) · nH2O
'Feldspar Group'
Fluorapatite
Formula: Ca5(PO4)3F
Fluorite
Formula: CaF2
Ilmenite
Formula: Fe2+TiO3
'K Feldspar'
Magnetite
Formula: Fe2+Fe3+2O4
Monazite-(Ce)
Formula: Ce(PO4)
'Monazite Group'
Formula: REE(PO4)
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Native Gold
Formula: Au
Native Silver
Formula: Ag
'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
Quartz
Formula: SiO2
Quartz var. Amethyst
Formula: SiO2
Topaz
Formula: Al2(SiO4)(F,OH)2
Triplite
Formula: Mn2+2(PO4)F
Uraninite
Formula: UO2
'Wolframite Group'
Xenotime-(Y)
Formula: Y(PO4)
Zircon
Formula: Zr(SiO4)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Native Gold1.AA.05Au
Native Silver1.AA.05Ag
Group 3 - Halides
Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
Magnetite4.BB.05Fe2+Fe3+2O4
Ilmenite4.CB.05Fe2+TiO3
Quartz
var. Amethyst
4.DA.05SiO2
4.DA.05SiO2
Cassiterite4.DB.05SnO2
'Wolframite Group'4.DB.30 va
Uraninite4.DL.05UO2
Group 8 - Phosphates, Arsenates and Vanadates
Xenotime-(Y)8.AD.35Y(PO4)
Monazite-(Ce)8.AD.50Ce(PO4)
Cheralite8.AD.50CaTh(PO4)2
Triplite8.BB.10Mn2+2(PO4)F
Fluorapatite8.BN.05Ca5(PO4)3F
Group 9 - Silicates
Coffinite9.AD.30U(SiO4) · nH2O
Zircon9.AD.30Zr(SiO4)
Topaz9.AF.35Al2(SiO4)(F,OH)2
Beryl9.CJ.05Be3Al2(Si6O18)
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Annite9.EC.20KFe2+3(AlSi3O10)(OH)2
Albite9.FA.35Na(AlSi3O8)
Unclassified
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
'Feldspar Group'-
'Monazite Group'-REE(PO4)
'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
'K Feldspar'-
'Apatite'-Ca5(PO4)3(Cl/F/OH)

List of minerals for each chemical element

HHydrogen
H AnniteKFe32+(AlSi3O10)(OH)2
H BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
H CoffiniteU(SiO4) · nH2O
H MuscoviteKAl2(AlSi3O10)(OH)2
H TopazAl2(SiO4)(F,OH)2
H ApatiteCa5(PO4)3(Cl/F/OH)
BeBeryllium
Be BerylBe3Al2(Si6O18)
OOxygen
O AlbiteNa(AlSi3O8)
O Quartz var. AmethystSiO2
O AnniteKFe32+(AlSi3O10)(OH)2
O BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
O BerylBe3Al2(Si6O18)
O CassiteriteSnO2
O CoffiniteU(SiO4) · nH2O
O FluorapatiteCa5(PO4)3F
O IlmeniteFe2+TiO3
O MagnetiteFe2+Fe23+O4
O Monazite GroupREE(PO4)
O Monazite-(Ce)Ce(PO4)
O MuscoviteKAl2(AlSi3O10)(OH)2
O QuartzSiO2
O TopazAl2(SiO4)(F,OH)2
O TripliteMn22+(PO4)F
O UraniniteUO2
O Xenotime-(Y)Y(PO4)
O ZirconZr(SiO4)
O CheraliteCaTh(PO4)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 FluorapatiteCa5(PO4)3F
F FluoriteCaF2
F TopazAl2(SiO4)(F,OH)2
F TripliteMn22+(PO4)F
F ApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
Na AlbiteNa(AlSi3O8)
Na Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
Mg BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
AlAluminium
Al AlbiteNa(AlSi3O8)
Al AnniteKFe32+(AlSi3O10)(OH)2
Al BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Al BerylBe3Al2(Si6O18)
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al TopazAl2(SiO4)(F,OH)2
Al Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
Si AlbiteNa(AlSi3O8)
Si Quartz var. AmethystSiO2
Si AnniteKFe32+(AlSi3O10)(OH)2
Si BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Si BerylBe3Al2(Si6O18)
Si CoffiniteU(SiO4) · nH2O
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si QuartzSiO2
Si TopazAl2(SiO4)(F,OH)2
Si ZirconZr(SiO4)
Si Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
PPhosphorus
P FluorapatiteCa5(PO4)3F
P Monazite GroupREE(PO4)
P Monazite-(Ce)Ce(PO4)
P TripliteMn22+(PO4)F
P Xenotime-(Y)Y(PO4)
P CheraliteCaTh(PO4)2
P ApatiteCa5(PO4)3(Cl/F/OH)
ClChlorine
Cl ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
K AnniteKFe32+(AlSi3O10)(OH)2
K BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
K MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca FluorapatiteCa5(PO4)3F
Ca FluoriteCaF2
Ca CheraliteCaTh(PO4)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 IlmeniteFe2+TiO3
MnManganese
Mn TripliteMn22+(PO4)F
FeIron
Fe AnniteKFe32+(AlSi3O10)(OH)2
Fe BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fe IlmeniteFe2+TiO3
Fe MagnetiteFe2+Fe23+O4
YYttrium
Y Xenotime-(Y)Y(PO4)
ZrZirconium
Zr ZirconZr(SiO4)
AgSilver
Ag Native SilverAg
SnTin
Sn CassiteriteSnO2
CeCerium
Ce Monazite-(Ce)Ce(PO4)
AuGold
Au Native GoldAu
ThThorium
Th CheraliteCaTh(PO4)2
UUranium
U CoffiniteU(SiO4) · nH2O
U UraniniteUO2

Fossils

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

Other Databases

Wikipedia:https://cs.wikipedia.org/wiki/T%C5%99%C3%ADdom%C3%AD
Wikidata ID:Q22670181

Localities in this Region

Other Regions, Features and Areas that Intersect

Eurasian PlateTectonic Plate
Europe

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.
 
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 2, 2026 15:00:58 Page updated: August 28, 2025 00:11:00
Go to top of page