Quick Links : The Mindat Manual The Rock H. Currier Digital Library Mindat Newsletter [Free Download]

Home Page About Mindat The Mindat Manual History of Mindat Copyright Status Who We Are Contact Us Advertise on Mindat

Donate to Mindat Corporate Sponsorship Sponsor a Page Sponsored Pages Mindat Advertisers Advertise on Mindat

Learning Center What is a mineral?The most common minerals on earth Information for Educators Mindat Articles The Elements The Rock H. Currier Digital Library Geologic Time Explore Fossils

Minerals by Properties Minerals by Chemistry Mineral Visual Explorer Advanced Locality Search Random Mineral Random Locality Search by minID Localities Near Me Search Articles Search Glossary More Search Options

The Mindat Manual Add a New Photo Rate Photos Locality Edit Report Coordinate Completion Report Add Glossary Item

Mining Companies Statistics Users Mineral Museums Clubs & Organizations Mineral Shows & Events The Mindat Directory Device Settings The Mineral Quiz Time Machine

Photo Search Photo Galleries Search by Color Photo Colour Explorer New Photos Today New Photos Yesterday Members' Photo Galleries Past Photo of the Day Gallery Photography

Pfaffensprung-Amsteg water tunnel, Amsteg power station, Amsteg, Reuss Valley, Uri, Switzerland i
Regional Level Types
Pfaffensprung-Amsteg water tunnel Tunnel
Amsteg power station Power Plant
Amsteg Village
Reuss Valley Valley
Uri Canton
Switzerland Country

Regional Level Types
Pfaffensprung-Amsteg water tunnel	Tunnel
Amsteg power station	Power Plant
Amsteg	Village
Reuss Valley	Valley
Uri	Canton
Switzerland	Country

This page is currently not sponsored. Click here to sponsor this page.

Photos Maps Search Mineralogy

Standard

Specimen Photos (1)Photos by Color Add Photo

Mineral Search Similar Localities Search Google

Predictive Mineralogy

Pyrrhotite

Pfaffensprung-Amsteg water tunnel, Amsteg power station, Amsteg, Reuss Valley, Uri, Switzerland

Pyrrhotite

Pfaffensprung-Amsteg water tunnel, Amsteg power station, Amsteg, Reuss Valley, Uri, Switzerland

Pyrrhotite

Pfaffensprung-Amsteg water tunnel, Amsteg power station, Amsteg, Reuss Valley, Uri, Switzerland

Latitude & Longitude (WGS84):

46° 45' 59'' North , 8° 40' 23'' East (est.)

Estimate based on other nearby localities or region boundaries.

Margin of Error:

~0km

Type:

Köppen climate type:

Mindat Locality ID:

133243

Long-form identifier:

mindat:1:2:133243:1

GUID (UUID V4):

Other Languages:

German:

Zulaufstollen Pfaffensprung-Amsteg, Kraftwerk Amsteg, Amsteg, Reusstal

A water tunnel feeding the Amsteg power station, cutting through carboniferous metavolcanites of the Aar massif. The minerals reported here were found during its construction.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

14 valid minerals.

Detailed Mineral List:

ⓘ Acanthite

Formula: Ag₂S

References:

Huttenlocher (1936): Manganese-zinc-silver deposit in the conduit of the power station at Amsteg. Schweizerische Mineralogische und Petrographische Mitteilungen 16(3), 406-408 (in German).

ⓘ Alabandite

Formula: MnS

References:

Stalder, Hans Anton; Wagner, Albert; Graeser, Stefan; Stuker, Peter (1998) Mineralienlexikon der Schweiz. Wepf Verlag. 579pp.p.27

ⓘ Argyrodite

Formula: Ag₈GeS₆

References:

Huttenlocher (1936): Manganese-zinc-silver deposit in the conduit of the power station at Amsteg. Schweizerische Mineralogische und Petrographische Mitteilungen 16(3), 406-408 (in German).

ⓘ Chalcopyrite

Formula: CuFeS₂

References:

Huttenlocher (1936): Manganese-zinc-silver deposit in the conduit of the power station at Amsteg. Schweizerische Mineralogische und Petrographische Mitteilungen 16(3), 406-408 (in German).

ⓘ Ferri-ghoseite

Formula: ◻(Mn²⁺Na)(Mg₄Fe³⁺)Si₈O₂₂(OH)₂

References:

Stalder, Hans Anton; Wagner, Albert; Graeser, Stefan; Stuker, Peter (1998) Mineralienlexikon der Schweiz. Wepf Verlag. 579pp.p.405

ⓘ Galena

Formula: PbS

References:

Huttenlocher (1936): Manganese-zinc-silver deposit in the conduit of the power station at Amsteg. Schweizerische Mineralogische und Petrographische Mitteilungen 16(3), 406-408 (in German).

ⓘ Native Bismuth

Formula: Bi

References:

Huttenlocher (1936): Manganese-zinc-silver deposit in the conduit of the power station at Amsteg. Schweizerische Mineralogische und Petrographische Mitteilungen 16(3), 406-408 (in German).

ⓘ Native Silver

Formula: Ag

References:

Huttenlocher (1936): Manganese-zinc-silver deposit in the conduit of the power station at Amsteg. Schweizerische Mineralogische und Petrographische Mitteilungen 16(3), 406-408 (in German).

ⓘ Pyrite

Formula: FeS₂

References:

Huttenlocher (1936): Manganese-zinc-silver deposit in the conduit of the power station at Amsteg. Schweizerische Mineralogische und Petrographische Mitteilungen 16(3), 406-408 (in German).

ⓘ Pyrrhotite

Formula: Fe_1-xS

References:

Huttenlocher (1936): Manganese-zinc-silver deposit in the conduit of the power station at Amsteg. Schweizerische Mineralogische und Petrographische Mitteilungen 16(3), 406-408 (in German).

Stalder, Hans Anton; Wagner, Albert; Graeser, Stefan; Stuker, Peter (1998) Mineralienlexikon der Schweiz. Wepf Verlag. 579pp.p.27

ⓘ Quartz

Formula: SiO₂

References:

Müller, Bruno, Reith, Patrick (2013) Uri : Kristalle aus dem Kanton Uri, Schweiz. Extralapis 44. Christian Weise

ⓘ Quartz var. Quartz Gwindel

Formula: SiO₂

References:

Müller, Bruno, Reith, Patrick (2013) Uri : Kristalle aus dem Kanton Uri, Schweiz. Extralapis 44. Christian Weise

ⓘ Rhodonite

Formula: CaMn₃Mn[Si₅O₁₅]

References:

Huttenlocher (1936): Manganese-zinc-silver deposit in the conduit of the power station at Amsteg. Schweizerische Mineralogische und Petrographische Mitteilungen 16(3), 406-408 (in German).

Stalder, Hans Anton; Wagner, Albert; Graeser, Stefan; Stuker, Peter (1998) Mineralienlexikon der Schweiz. Wepf Verlag. 579pp.p.349

ⓘ Sphalerite

Formula: ZnS

References:

Huttenlocher (1936): Manganese-zinc-silver deposit in the conduit of the power station at Amsteg. Schweizerische Mineralogische und Petrographische Mitteilungen 16(3), 406-408 (in German).

ⓘ Stannite

Formula: Cu₂FeSnS₄

References:

Stalder, Hans Anton; Wagner, Albert; Graeser, Stefan; Stuker, Peter (1998) Mineralienlexikon der Schweiz. Wepf Verlag. 579pp.p.383

ⓘ 'Tetrahedrite Group'

Formula: ^M2(A₆)^M1(B₄ C₂)^X3(D₄)^S1(Y₁₂)^S2(Z)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘ	Native Silver	1.AA.05	Ag
ⓘ	Native Bismuth	1.CA.05	Bi
Group 2 - Sulphides and Sulfosalts
ⓘ	Acanthite	2.BA.35	Ag₂S
ⓘ	Argyrodite	2.BA.70	Ag₈GeS₆
ⓘ	Sphalerite	2.CB.05a	ZnS
ⓘ	Chalcopyrite	2.CB.10a	CuFeS₂
ⓘ	Stannite	2.CB.15a	Cu₂FeSnS₄
ⓘ	Pyrrhotite	2.CC.10	Fe_1-xS
ⓘ	Alabandite	2.CD.10	MnS
ⓘ	Galena	2.CD.10	PbS
ⓘ	Pyrite	2.EB.05a	FeS₂
Group 4 - Oxides and Hydroxides
ⓘ	Quartz	4.DA.05	SiO₂
ⓘ	var. Quartz Gwindel	4.DA.05	SiO₂
Group 9 - Silicates
ⓘ	Ferri-ghoseite	9.DE.20	◻(Mn²⁺Na)(Mg₄Fe³⁺)Si₈O₂₂(OH)₂
ⓘ	Rhodonite	9.DK.05	CaMn₃Mn[Si₅O₁₅]
Unclassified
ⓘ	'Tetrahedrite Group'	-	^M2(A₆)^M1(B₄ C₂)^X3(D₄)^S1(Y₁₂)^S2(Z)

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Ferri-ghoseite	◻(Mn²⁺Na)(Mg₄Fe³⁺)Si₈O₂₂(OH)₂
O	Oxygen
O	ⓘ Quartz	SiO₂
O	ⓘ Rhodonite	CaMn₃Mn[Si₅O₁₅]
O	ⓘ Ferri-ghoseite	◻(Mn²⁺Na)(Mg₄Fe³⁺)Si₈O₂₂(OH)₂
O	ⓘ Quartz var. Quartz Gwindel	SiO₂
Na	Sodium
Na	ⓘ Ferri-ghoseite	◻(Mn²⁺Na)(Mg₄Fe³⁺)Si₈O₂₂(OH)₂
Mg	Magnesium
Mg	ⓘ Ferri-ghoseite	◻(Mn²⁺Na)(Mg₄Fe³⁺)Si₈O₂₂(OH)₂
Si	Silicon
Si	ⓘ Quartz	SiO₂
Si	ⓘ Rhodonite	CaMn₃Mn[Si₅O₁₅]
Si	ⓘ Ferri-ghoseite	◻(Mn²⁺Na)(Mg₄Fe³⁺)Si₈O₂₂(OH)₂
Si	ⓘ Quartz var. Quartz Gwindel	SiO₂
S	Sulfur
S	ⓘ Acanthite	Ag₂S
S	ⓘ Alabandite	MnS
S	ⓘ Argyrodite	Ag₈GeS₆
S	ⓘ Chalcopyrite	CuFeS₂
S	ⓘ Galena	PbS
S	ⓘ Pyrite	FeS₂
S	ⓘ Pyrrhotite	Fe_1-xS
S	ⓘ Sphalerite	ZnS
S	ⓘ Stannite	Cu₂FeSnS₄
S	ⓘ Tetrahedrite Group	^M2(A₆)^M1(B₄ C₂)^X3(D₄)^S1(Y₁₂)^S2(Z)
Ca	Calcium
Ca	ⓘ Rhodonite	CaMn₃Mn[Si₅O₁₅]
Mn	Manganese
Mn	ⓘ Alabandite	MnS
Mn	ⓘ Rhodonite	CaMn₃Mn[Si₅O₁₅]
Mn	ⓘ Ferri-ghoseite	◻(Mn²⁺Na)(Mg₄Fe³⁺)Si₈O₂₂(OH)₂
Fe	Iron
Fe	ⓘ Chalcopyrite	CuFeS₂
Fe	ⓘ Pyrite	FeS₂
Fe	ⓘ Pyrrhotite	Fe_1-xS
Fe	ⓘ Stannite	Cu₂FeSnS₄
Fe	ⓘ Ferri-ghoseite	◻(Mn²⁺Na)(Mg₄Fe³⁺)Si₈O₂₂(OH)₂
Cu	Copper
Cu	ⓘ Chalcopyrite	CuFeS₂
Cu	ⓘ Stannite	Cu₂FeSnS₄
Zn	Zinc
Zn	ⓘ Sphalerite	ZnS
Ge	Germanium
Ge	ⓘ Argyrodite	Ag₈GeS₆
Ag	Silver
Ag	ⓘ Acanthite	Ag₂S
Ag	ⓘ Argyrodite	Ag₈GeS₆
Ag	ⓘ Native Silver	Ag
Sn	Tin
Sn	ⓘ Stannite	Cu₂FeSnS₄
Pb	Lead
Pb	ⓘ Galena	PbS
Bi	Bismuth
Bi	ⓘ Native Bismuth	Bi

Other Regions, Features and Areas containing this locality

Eurasian PlateTectonic Plate

AlpsAccretionary Complex

EuropeContinent

The AlpsMountain Range

Switzerland

Uri
- Reuss ValleyValley

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

Huttenlocher, H.F. (1936): Manganese-zinc-silver deposit in the conduit of the power station at Amsteg. Schweizerische Mineralogische und Petrographische Mitteilungen 16(3), 406-408 (in German).

Quick NavTop Mineral List Other Regions References

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 4, 2026 09:13:38 Page updated: August 5, 2026 14:46:30

Go to top of page