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Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Schlossberg tunnel, Kapfenberg, Bruck-Mürzzuschlag District, Styria, Austriai
Regional Level Types
Schlossberg tunnelProcessing Plant (Inactive)
KapfenbergMunicipality
Bruck-Mürzzuschlag DistrictDistrict
StyriaState
AustriaCountry

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PhotosMapsSearchMineralogy
07761690017858279644335.jpg
Adit

Schlossberg tunnel, Kapfenberg, Bruck-Mürzzuschlag District, Styria, Austria
05831970017858280137114.jpg
Adit

Schlossberg tunnel, Kapfenberg, Bruck-Mürzzuschlag District, Styria, Austria
06245080017858278329763.jpg
Calcite

Schlossberg tunnel, Kapfenberg, Bruck-Mürzzuschlag District, Styria, Austria
07067920017858276724100.jpg
Ferrierite-Mg, etc.

Schlossberg tunnel, Kapfenberg, Bruck-Mürzzuschlag District, Styria, Austria
07761690017858279644335.jpg
Adit

Schlossberg tunnel, Kapfenberg, Bruck-Mürzzuschlag District, Styria, Austria
05831970017858280137114.jpg
Adit

Schlossberg tunnel, Kapfenberg, Bruck-Mürzzuschlag District, Styria, Austria
06245080017858278329763.jpg
Calcite

Schlossberg tunnel, Kapfenberg, Bruck-Mürzzuschlag District, Styria, Austria
00855960017858278335490.jpg
Ferrierite-Mg, etc.

Schlossberg tunnel, Kapfenberg, Bruck-Mürzzuschlag District, Styria, Austria
06178210017858282284509.jpg
Adit

Schlossberg tunnel, Kapfenberg, Bruck-Mürzzuschlag District, Styria, Austria
08952150017858282283724.jpg
Adit

Schlossberg tunnel, Kapfenberg, Bruck-Mürzzuschlag District, Styria, Austria
Latitude & Longitude (WGS84):
47° 26' 18'' North , 15° 17' 45'' East
Latitude & Longitude (decimal):
47.43858,15.29603
GRN:
N32E08
Type:
Processing Plant (Inactive) - last checked 2026
Köppen climate type:
Dfb : Warm-summer humid continental climate
Nearest Settlements:
PlacePopulationDistance
Kapfenberg3,296 (2018)0.7km
Sankt Martin2,417 (2018)1.2km
Kaltbach103 (2018)1.6km
Diemlach1,976 (2018)1.6km
Winkl463 (2018)2.4km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Vereinigung der Leobener MineralienfreundeSt. Marein-Feistritz, Styria36km
Mindat Locality ID:
479999
Long-form identifier:
mindat:1:2:479999:6
GUID (UUID V4):
0


A large former air raid tunnel and production plant during WW2.
The mineralogy is similiar to the nearby Tanzenberg tunnel https://www.mindat.org/loc-6239.html

As there are 4 adits to the tunnel system the GRID is set to the top of the Schlossberg

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


16 valid minerals.

Detailed Mineral List:

ⓘ Almandine
Formula: Fe2+3Al2(SiO4)3
ⓘ 'Amphibole Supergroup'
Formula: AB2C5(T8O22)W2
ⓘ Analcime
Formula: Na(AlSi2O6) · H2O
ⓘ Aragonite
Formula: CaCO3
ⓘ Baryte
Formula: BaSO4
ⓘ Calcite
Formula: CaCO3
ⓘ Chalcopyrite
Formula: CuFeS2
ⓘ 'Chlorite Group'
ⓘ Dolomite
Formula: CaMg(CO3)2
ⓘ 'Feldspar Group'
ⓘ Ferrierite-Mg
Formula: [Mg2(K,Na)2Ca0.5](Si29Al7)O72 · 18H2O
ⓘ Graphite
Formula: C
ⓘ Gypsum
Formula: CaSO4 · 2H2O
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Natrojarosite
Formula: NaFe3(SO4)2(OH)6
ⓘ Pyrite
Formula: FeS2
ⓘ Pyrrhotite
Formula: Fe1-xS
ⓘ Quartz
Formula: SiO2
ⓘ Quartz var. Rock Crystal
Formula: SiO2
ⓘ Sphalerite
Formula: ZnS
ⓘ 'Tourmaline'
Formula: AD3G6(T6O18)(BO3)3X3Z

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘGraphite1.CB.05aC
Group 2 - Sulphides and Sulfosalts
ⓘSphalerite2.CB.05aZnS
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘPyrrhotite2.CC.10Fe1-xS
ⓘPyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
ⓘvar. Rock Crystal4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘDolomite5.AB.10CaMg(CO3)2
ⓘAragonite5.AB.15CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘBaryte7.AD.35BaSO4
ⓘNatrojarosite7.BC.10NaFe3(SO4)2(OH)6
ⓘGypsum7.CD.40CaSO4 · 2H2O
Group 9 - Silicates
ⓘAlmandine9.AD.25Fe2+3Al2(SiO4)3
ⓘMuscovite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘAnalcime9.GB.05Na(AlSi2O6) · H2O
ⓘFerrierite-Mg9.GD.50[Mg2(K,Na)2Ca0.5](Si29Al7)O72 · 18H2O
Unclassified
ⓘ'Amphibole Supergroup'-AB2C5(T8O22)W2
ⓘ'Chlorite Group'-
ⓘ'Feldspar Group'-
ⓘ'Tourmaline'-AD3G6(T6O18)(BO3)3X3Z

List of minerals for each chemical element

HHydrogen
Hⓘ AnalcimeNa(AlSi2O6) · H2O
Hⓘ GypsumCaSO4 · 2H2O
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ NatrojarositeNaFe3(SO4)2(OH)6
Hⓘ Ferrierite-Mg[Mg2(K,Na)2Ca0.5](Si29Al7)O72 · 18H2O
BBoron
Bⓘ TourmalineAD3G6(T6O18)(BO3)3X3Z
CCarbon
Cⓘ AragoniteCaCO3
Cⓘ CalciteCaCO3
Cⓘ DolomiteCaMg(CO3)2
Cⓘ GraphiteC
OOxygen
Oⓘ Amphibole SupergroupAB2C5(T8O22)W2
Oⓘ AnalcimeNa(AlSi2O6) · H2O
Oⓘ AragoniteCaCO3
Oⓘ AlmandineFe32+Al2(SiO4)3
Oⓘ BaryteBaSO4
Oⓘ CalciteCaCO3
Oⓘ DolomiteCaMg(CO3)2
Oⓘ GypsumCaSO4 · 2H2O
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ NatrojarositeNaFe3(SO4)2(OH)6
Oⓘ QuartzSiO2
Oⓘ TourmalineAD3G6(T6O18)(BO3)3X3Z
Oⓘ Quartz var. Rock CrystalSiO2
Oⓘ Ferrierite-Mg[Mg2(K,Na)2Ca0.5](Si29Al7)O72 · 18H2O
NaSodium
Naⓘ AnalcimeNa(AlSi2O6) · H2O
Naⓘ NatrojarositeNaFe3(SO4)2(OH)6
Naⓘ Ferrierite-Mg[Mg2(K,Na)2Ca0.5](Si29Al7)O72 · 18H2O
MgMagnesium
Mgⓘ DolomiteCaMg(CO3)2
Mgⓘ Ferrierite-Mg[Mg2(K,Na)2Ca0.5](Si29Al7)O72 · 18H2O
AlAluminium
Alⓘ AnalcimeNa(AlSi2O6) · H2O
Alⓘ AlmandineFe32+Al2(SiO4)3
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ Ferrierite-Mg[Mg2(K,Na)2Ca0.5](Si29Al7)O72 · 18H2O
SiSilicon
Siⓘ AnalcimeNa(AlSi2O6) · H2O
Siⓘ AlmandineFe32+Al2(SiO4)3
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ QuartzSiO2
Siⓘ Quartz var. Rock CrystalSiO2
Siⓘ Ferrierite-Mg[Mg2(K,Na)2Ca0.5](Si29Al7)O72 · 18H2O
SSulfur
Sⓘ BaryteBaSO4
Sⓘ ChalcopyriteCuFeS2
Sⓘ GypsumCaSO4 · 2H2O
Sⓘ NatrojarositeNaFe3(SO4)2(OH)6
Sⓘ PyriteFeS2
Sⓘ PyrrhotiteFe1-xS
Sⓘ SphaleriteZnS
KPotassium
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Kⓘ Ferrierite-Mg[Mg2(K,Na)2Ca0.5](Si29Al7)O72 · 18H2O
CaCalcium
Caⓘ AragoniteCaCO3
Caⓘ CalciteCaCO3
Caⓘ DolomiteCaMg(CO3)2
Caⓘ GypsumCaSO4 · 2H2O
Caⓘ Ferrierite-Mg[Mg2(K,Na)2Ca0.5](Si29Al7)O72 · 18H2O
FeIron
Feⓘ AlmandineFe32+Al2(SiO4)3
Feⓘ ChalcopyriteCuFeS2
Feⓘ NatrojarositeNaFe3(SO4)2(OH)6
Feⓘ PyriteFeS2
Feⓘ PyrrhotiteFe1-xS
CuCopper
Cuⓘ ChalcopyriteCuFeS2
ZnZinc
Znⓘ SphaleriteZnS
BaBarium
Baⓘ BaryteBaSO4

Other Regions, Features and Areas containing this locality

Eurasian PlateTectonic Plate
EuropeContinent

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

Auer, C. (2026): 2400) Almandin, Amphibol, Analcim, Aragonit, Baryt, Calcit, Chalkopyrit, Chlorit, Dolomit, Feldspat, Ferrierit-(Mg), Gips, Graphit, Muskovit, Natrojarosit, Pyrit, Pyrrhotin, Quarz (Bergkristall), Sphalerit sowie Turmalin vom Schlossbergstollen bei Kapfenberg, Bezirk Bruck an der Mur, Steiermark. Pp. 484-487 in Walter, F. et al. (2026): Neue Mineralfunde aus Österreich LXXV. Carinthia II, 216./136., 397-506.
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