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Käfersteige Mine, Würm, Pforzheim, Karlsruhe Region, Baden-Württemberg, Germanyi
Regional Level Types
Käfersteige MineMine
WürmBorough
PforzheimCity
Karlsruhe RegionRegion
Baden-WürttembergState
GermanyCountry

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Latitude & Longitude (WGS84):
48° 50' 51'' North , 8° 46' 4'' East
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Tiefenbronn5,583 (2017)3.6km
Wurmberg2,898 (2011)4.1km
Wimsheim2,705 (2011)4.8km
Unterreichenbach2,282 (2017)5.0km
Friolzheim3,575 (2011)5.1km
Mindat Locality ID:
1852
Long-form identifier:
mindat:1:2:1852:7
GUID (UUID V4):
0
Other/historical names associated with this locality:
Würmtalstollen
Other Languages:
German:
Grube Käfersteige, Würm, Pforzheim, Regierungsbezirk Karlsruhe, Baden-Württemberg, Deutschland


Fluorite-quartz vein deposit, hosted in bunter sandstones along the suture zone between the Moldanubian and Saxothuringian units of the Hercynian fold belt. The vein trends ENE, is either vertical or dips steeply to the north and extends over a strike length of 250-1500m. Its thickness varies from 5-30m. To the north, it is bounded by a clay gouge which is up to 15m thick.

Located between Würm and Tiefenbronn, about 7.5 km SE of Pforzheim. The mine was closed by the end of 1996 because of decreasing industrial demand for fluorite. Since spring 2005, it was being prepared to be re-opened. As of 2007 it is closed.

Currently (2026), the mine is scheduled to re-open in 2027 by the Deutsche Flussspat GmbH (https://www.deutsche-flussspat.de/news/dfg-startet-sicherheitsrelevante-massnahmen/ and https://www.mineralienatlas.de/forum/index.php/topic,65475.msg424490/topicseen.html#new).

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


46 valid minerals.

Detailed Mineral List:

Agardite-(Ce)
Formula: CeCu6(AsO4)3(OH)6 · 3H2O
Agardite-(Nd)
Formula: NdCu6(AsO4)3(OH)6 · 3H2O
Alloclasite
Formula: Co1-xFexAsS
Ankerite
Formula: Ca(Fe2+,Mg)(CO3)2
Azurite
Formula: Cu3(CO3)2(OH)2
Baryte
Formula: BaSO4
Bismite
Formula: Bi2O3
Bismuthinite
Formula: Bi2S3
Bismutite
Formula: (BiO)2CO3
Bornite
Formula: Cu5FeS4
Brochantite
Formula: Cu4(SO4)(OH)6
Calcite
Formula: CaCO3
Chalcanthite
Formula: CuSO4 · 5H2O
Chalcocite
Formula: Cu2S
Chalcopyrite
Formula: CuFeS2
Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Cobaltite ?
Formula: CoAsS
Covellite
Formula: CuS
Cuprite
Formula: Cu2O
Devilline
Formula: CaCu4(SO4)2(OH)6 · 3H2O
Dolomite
Formula: CaMg(CO3)2
Emplectite
Formula: CuBiS2
Erythrite
Formula: Co3(AsO4)2 · 8H2O
Fluorite
Formula: CaF2
Galena
Formula: PbS
Goethite
Formula: Fe3+O(OH)
Hematite
Formula: Fe2O3
Langite
Formula: Cu4(SO4)(OH)6 · 2H2O
'Limonite'
Malachite
Formula: Cu2(CO3)(OH)2
'Manganogel'
Formula: ~MnO2 · nH2O
Marcasite
Formula: FeS2
Mixite
Formula: BiCu6(AsO4)3(OH)6 · 3H2O
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Muscovite var. Illite
Formula: K0.65Al2.0[Al0.65Si3.35O10](OH)2
Native Bismuth
Formula: Bi
Native Copper
Formula: Cu
Native Silver
Formula: Ag
Native Sulphur
Formula: S8
Olivenite
Formula: Cu2(AsO4)(OH)
'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
Posnjakite
Formula: Cu4(SO4)(OH)6 · H2O
'Psilomelane'
Pyrite
Formula: FeS2
Pyrolusite
Formula: Mn4+O2
Quartz
Formula: SiO2
Rhodochrosite
Formula: MnCO3
Siderite
Formula: FeCO3
Sphalerite
Formula: ZnS
Spionkopite ?
Formula: Cu39S28
'Tennantite Subgroup'
Formula: Cu6(Cu4C2+2)As4S12S
'Tetrahedrite Subgroup'
Formula: Cu6(Cu4C2+2)Sb4S12S
Yarrowite ?
Formula: Cu9S8

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Native Copper1.AA.05Cu
Native Silver1.AA.05Ag
Native Bismuth1.CA.05Bi
Native Sulphur1.CC.05S8
Group 2 - Sulphides and Sulfosalts
Chalcocite2.BA.05Cu2S
Bornite2.BA.15Cu5FeS4
Covellite2.CA.05aCuS
Spionkopite ?2.CA.05cCu39S28
Yarrowite ?2.CA.05dCu9S8
Sphalerite2.CB.05aZnS
Chalcopyrite2.CB.10aCuFeS2
Galena2.CD.10PbS
Bismuthinite2.DB.05Bi2S3
Pyrite2.EB.05aFeS2
Marcasite2.EB.10aFeS2
Alloclasite2.EB.10bCo1-xFexAsS
Cobaltite ?2.EB.25CoAsS
'Tennantite Subgroup'2.GB.05Cu6(Cu4C2+2)As4S12S
'Tetrahedrite Subgroup'2.GB.05Cu6(Cu4C2+2)Sb4S12S
Emplectite2.HA.05CuBiS2
Group 3 - Halides
Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
Cuprite4.AA.10Cu2O
Hematite4.CB.05Fe2O3
Bismite4.CB.60Bi2O3
Quartz4.DA.05SiO2
Pyrolusite4.DB.05Mn4+O2
Goethite4.FD.10Fe3+O(OH)
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Rhodochrosite5.AB.05MnCO3
Siderite5.AB.05FeCO3
Ankerite5.AB.10Ca(Fe2+,Mg)(CO3)2
Dolomite5.AB.10CaMg(CO3)2
Azurite5.BA.05Cu3(CO3)2(OH)2
Malachite5.BA.10Cu2(CO3)(OH)2
Bismutite5.BE.25(BiO)2CO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Baryte7.AD.35BaSO4
Brochantite7.BB.25Cu4(SO4)(OH)6
Chalcanthite7.CB.20CuSO4 · 5H2O
Langite7.DD.10Cu4(SO4)(OH)6 · 2H2O
Posnjakite7.DD.10Cu4(SO4)(OH)6 · H2O
Devilline7.DD.30CaCu4(SO4)2(OH)6 · 3H2O
Group 8 - Phosphates, Arsenates and Vanadates
Olivenite8.BB.30Cu2(AsO4)(OH)
Erythrite8.CE.40Co3(AsO4)2 · 8H2O
Agardite-(Nd)8.DL.15NdCu6(AsO4)3(OH)6 · 3H2O
Agardite-(Ce)8.DL.15CeCu6(AsO4)3(OH)6 · 3H2O
Mixite8.DL.15BiCu6(AsO4)3(OH)6 · 3H2O
Group 9 - Silicates
Muscovite
var. Illite
9.EC.15K0.65Al2.0[Al0.65Si3.35O10](OH)2
9.EC.15KAl2(AlSi3O10)(OH)2
Chrysocolla9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Unclassified
'Limonite'-
'Manganogel'-~MnO2 · nH2O
'Psilomelane'-
'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8

List of minerals for each chemical element

HHydrogen
H Agardite-(Nd)NdCu6(AsO4)3(OH)6 · 3H2O
H Agardite-(Ce)CeCu6(AsO4)3(OH)6 · 3H2O
H AzuriteCu3(CO3)2(OH)2
H BrochantiteCu4(SO4)(OH)6
H ChalcanthiteCuSO4 · 5H2O
H ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
H DevillineCaCu4(SO4)2(OH)6 · 3H2O
H ErythriteCo3(AsO4)2 · 8H2O
H GoethiteFe3+O(OH)
H Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
H LangiteCu4(SO4)(OH)6 · 2H2O
H Manganogel~MnO2 · nH2O
H MalachiteCu2(CO3)(OH)2
H MixiteBiCu6(AsO4)3(OH)6 · 3H2O
H MuscoviteKAl2(AlSi3O10)(OH)2
H OliveniteCu2(AsO4)(OH)
H PosnjakiteCu4(SO4)(OH)6 · H2O
CCarbon
C AnkeriteCa(Fe2+,Mg)(CO3)2
C AzuriteCu3(CO3)2(OH)2
C Bismutite(BiO)2CO3
C CalciteCaCO3
C DolomiteCaMg(CO3)2
C MalachiteCu2(CO3)(OH)2
C RhodochrositeMnCO3
C SideriteFeCO3
OOxygen
O Agardite-(Nd)NdCu6(AsO4)3(OH)6 · 3H2O
O Agardite-(Ce)CeCu6(AsO4)3(OH)6 · 3H2O
O AnkeriteCa(Fe2+,Mg)(CO3)2
O AzuriteCu3(CO3)2(OH)2
O BaryteBaSO4
O BismiteBi2O3
O Bismutite(BiO)2CO3
O BrochantiteCu4(SO4)(OH)6
O CalciteCaCO3
O ChalcanthiteCuSO4 · 5H2O
O ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
O CupriteCu2O
O DevillineCaCu4(SO4)2(OH)6 · 3H2O
O DolomiteCaMg(CO3)2
O ErythriteCo3(AsO4)2 · 8H2O
O GoethiteFe3+O(OH)
O HematiteFe2O3
O Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
O LangiteCu4(SO4)(OH)6 · 2H2O
O Manganogel~MnO2 · nH2O
O MalachiteCu2(CO3)(OH)2
O MixiteBiCu6(AsO4)3(OH)6 · 3H2O
O MuscoviteKAl2(AlSi3O10)(OH)2
O OliveniteCu2(AsO4)(OH)
O PosnjakiteCu4(SO4)(OH)6 · H2O
O PyrolusiteMn4+O2
O QuartzSiO2
O RhodochrositeMnCO3
O SideriteFeCO3
O Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
FFluorine
F FluoriteCaF2
NaSodium
Na Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
Mg AnkeriteCa(Fe2+,Mg)(CO3)2
Mg DolomiteCaMg(CO3)2
AlAluminium
Al ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Al Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
Si ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Si Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si QuartzSiO2
Si Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SSulfur
S AlloclasiteCo1-xFexAsS
S BaryteBaSO4
S BismuthiniteBi2S3
S BorniteCu5FeS4
S BrochantiteCu4(SO4)(OH)6
S ChalcopyriteCuFeS2
S ChalcanthiteCuSO4 · 5H2O
S ChalcociteCu2S
S CobaltiteCoAsS
S CovelliteCuS
S DevillineCaCu4(SO4)2(OH)6 · 3H2O
S EmplectiteCuBiS2
S GalenaPbS
S LangiteCu4(SO4)(OH)6 · 2H2O
S MarcasiteFeS2
S PosnjakiteCu4(SO4)(OH)6 · H2O
S PyriteFeS2
S SphaleriteZnS
S SpionkopiteCu39S28
S Native SulphurS8
S Tennantite SubgroupCu6(Cu4C22+)As4S12S
S Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
S YarrowiteCu9S8
KPotassium
K Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
K MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca AnkeriteCa(Fe2+,Mg)(CO3)2
Ca CalciteCaCO3
Ca DevillineCaCu4(SO4)2(OH)6 · 3H2O
Ca DolomiteCaMg(CO3)2
Ca FluoriteCaF2
Ca Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MnManganese
Mn Manganogel~MnO2 · nH2O
Mn PyrolusiteMn4+O2
Mn RhodochrositeMnCO3
FeIron
Fe AlloclasiteCo1-xFexAsS
Fe AnkeriteCa(Fe2+,Mg)(CO3)2
Fe BorniteCu5FeS4
Fe ChalcopyriteCuFeS2
Fe GoethiteFe3+O(OH)
Fe HematiteFe2O3
Fe MarcasiteFeS2
Fe PyriteFeS2
Fe SideriteFeCO3
CoCobalt
Co AlloclasiteCo1-xFexAsS
Co CobaltiteCoAsS
Co ErythriteCo3(AsO4)2 · 8H2O
CuCopper
Cu Agardite-(Nd)NdCu6(AsO4)3(OH)6 · 3H2O
Cu Agardite-(Ce)CeCu6(AsO4)3(OH)6 · 3H2O
Cu AzuriteCu3(CO3)2(OH)2
Cu BorniteCu5FeS4
Cu BrochantiteCu4(SO4)(OH)6
Cu ChalcopyriteCuFeS2
Cu ChalcanthiteCuSO4 · 5H2O
Cu ChalcociteCu2S
Cu ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Cu CovelliteCuS
Cu CupriteCu2O
Cu Native CopperCu
Cu DevillineCaCu4(SO4)2(OH)6 · 3H2O
Cu EmplectiteCuBiS2
Cu LangiteCu4(SO4)(OH)6 · 2H2O
Cu MalachiteCu2(CO3)(OH)2
Cu MixiteBiCu6(AsO4)3(OH)6 · 3H2O
Cu OliveniteCu2(AsO4)(OH)
Cu PosnjakiteCu4(SO4)(OH)6 · H2O
Cu SpionkopiteCu39S28
Cu Tennantite SubgroupCu6(Cu4C22+)As4S12S
Cu Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
Cu YarrowiteCu9S8
ZnZinc
Zn SphaleriteZnS
AsArsenic
As Agardite-(Nd)NdCu6(AsO4)3(OH)6 · 3H2O
As Agardite-(Ce)CeCu6(AsO4)3(OH)6 · 3H2O
As AlloclasiteCo1-xFexAsS
As CobaltiteCoAsS
As ErythriteCo3(AsO4)2 · 8H2O
As MixiteBiCu6(AsO4)3(OH)6 · 3H2O
As OliveniteCu2(AsO4)(OH)
As Tennantite SubgroupCu6(Cu4C22+)As4S12S
AgSilver
Ag Native SilverAg
SbAntimony
Sb Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
BaBarium
Ba BaryteBaSO4
CeCerium
Ce Agardite-(Ce)CeCu6(AsO4)3(OH)6 · 3H2O
NdNeodymium
Nd Agardite-(Nd)NdCu6(AsO4)3(OH)6 · 3H2O
PbLead
Pb GalenaPbS
BiBismuth
Bi BismiteBi2O3
Bi Native BismuthBi
Bi BismuthiniteBi2S3
Bi Bismutite(BiO)2CO3
Bi EmplectiteCuBiS2
Bi MixiteBiCu6(AsO4)3(OH)6 · 3H2O

Geochronology

Mineralization age: Late Jurassic : 145 ± 5 Ma

Important note: This table is based only on rock and mineral ages recorded on mindat.org for this locality and is not necessarily a complete representation of the geochronology, but does give an indication of possible mineralization events relevant to this locality. As more age information is added this table may expand in the future. A break in the table simply indicates a lack of data entered here, not necessarily a break in the geologic sequence. Grey background entries are from different, related, localities.

Geologic TimeRocks, Minerals and Events
Phanerozoic
 Mesozoic
  Cretaceous
   Early/Lower Cretaceous
ⓘ Illite145 ± 5 Ma

Other Regions, Features and Areas containing this locality

Eurasian PlateTectonic Plate
EuropeContinent
Germany

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

 
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