Silberhardt Mine, Öttershagen, Windeck, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germanyi
| Regional Level Types | |
|---|---|
| Silberhardt Mine | Mine (Tourist Attraction) |
| Öttershagen | - not defined - |
| Windeck | Municipality |
| Rhein-Sieg-Kreis | District |
| Cologne | Administrative District |
| North Rhine-Westphalia | State |
| Germany | Country |
This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude (WGS84):
50° 49' 23'' North , 7° 38' 31'' East
Latitude & Longitude (decimal):
Type:
Mine (Tourist Attraction) - last checked 2023
Köppen climate type:
Name(s) in local language(s):
Grube Silberhardt, Öttershagen, Windeck, Bergisches Land, Nordrhein-Westfalen, Deutschland
The ore body is a typical mixture of predominantly siderite with veins of galenite, sphalerite and minor amounts of chalcopyrite typically formed during the later phases of the Variscan orogeny. The base rock consists of schists and siltstone from the Lower Devonian (upper Siegen). Quarz-bearing intrusions are rather rare.
Ancient mining for silver-bearing galena and lead started in the 15th century. However, mining activities in the area are recorded as early as the 13th century.
In the 19th century the mine re-worked the mining dumps to exploit the zinc-ore (sphalerite). Between 1920 and 1925 a last attempt was started to mine for iron-ore (siderite - "Spateisen"). The success was very limited and eventually the mine was closed on 4 November 1925.
The old "upper adit" was re-opened beginning in 1997 and finally the mine opened as a tourist mine in 1999. Additionally a mining trail was established in 2001.
In 2011 a new visitor center was opened presenting a collection of local minerals and mining artefacts. More info can be found here => https://www.grube-silberhardt.de/ (web page is in German language only).
Besides the now open old "upper adit", several deeper levels are documented down to the 156 m-level. But there is also a higher level which is likely the oldest part of the mine.
The old dumps from the active mining area were removed or used as filling material in the surrounding area in the decades after closure.
Almost all material produced during the re-opening was also removed and used for road-works.
There are no known specimens in collections coming from the active production period. All minerals shown here were found in the museum's repository with material coming from the re-opening works.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Anglesite Formula: PbSO4 References: Remmert, Marc (2023) Personal Communication. Identified by Marc Remmert: Visual Identification |
| ⓘ Bornite Formula: Cu5FeS4 References: Remmert, Marc (2023) Personal Communication. Identified by Marc Remmert: Visual Identification |
| ⓘ Brochantite Formula: Cu4(SO4)(OH)6 References: Remmert, Marc (2023) Personal Communication. Identified by Marc Remmert: Visual Identification |
| ⓘ Cerussite Formula: PbCO3 References: Remmert, Marc (2023) Personal Communication. Identified by Marc Remmert: Visual Identification |
| ⓘ Chalcopyrite Formula: CuFeS2 References: Remmert, Marc (2023) Personal Communication. Identified by Marc Remmert: Visual Identification |
| ⓘ Cuprite Formula: Cu2O References: Remmert, Marc (2023) Personal Communication. Identified by Marc Remmert: Visual Identification |
| ⓘ Erythrite Formula: Co3(AsO4)2 · 8H2O References: Remmert, Marc (2023) Personal Communication. Identified by Marc Remmert: Visual Identification |
| ⓘ Galena Formula: PbS References: Remmert, Marc (2023) Personal Communication. Identified by Marc Remmert: Visual Identification |
| ⓘ Goethite Formula: Fe3+O(OH) References: Remmert, Marc (2023) Personal Communication. Identified by Marc Remmert: Visual Identification |
| ⓘ Katerinopoulosite Formula: (NH4)2Zn(SO4)2 · 6H2O Description: Colourless to white transparent groups intergrown with green ktenasite. The overall appearance is pale green. The EDS data shows Zn dominance, with some amounts of Cu and minor Mg on the cation site. Ammonium is confirmed by the presence of significant ammounts nitrogen in the EDS data.
The analyzed specimen was found on sample rocks which where collected during the reopening of the adit. These rocks where stored almost 20 years before Sigi Hupfer had the opportunity to check these and forwarded samples to Joy Desor for analysis.
It is highly likely that the mineral was formed as a result of alteration resp. decaying ore on the sample rock in association with partially high humidity.
This is is confirmed by the identification of highly soluble Pentahydrit in 2024, also on rock samples stored for many years.
Considering the high solubility in water of this mineral and knowing the situation in the adit it becomes clear that the formation cannot had happened underground, hence ist occurence might be considered as "artificial" or "human induced" (comparable to minerals found in slags).
Publications in the local press about the "sensational find of Katerinopoulosit" stated an occurence inside the adit. This is either a wrong or misunderstood statement of the person being interviewed (see: https://www.rundschau-online.de/region/rhein-sieg/eitorf-windeck/windeck-forscher-finden-seltenes-mineral-in-grube-silberhardt-382197) |
| ⓘ Ktenasite Formula: ZnCu4(SO4)2(OH)6 · 6H2O References: Remmert, Marc (2023) Personal Communication. Identified by Marc Remmert: Visual Identification |
| ⓘ Lepidocrocite Formula: Fe3+O(OH) References: Remmert, Marc (2023) Personal Communication. Identified by Marc Remmert: Visual Identification |
| ⓘ Linarite Formula: PbCu(SO4)(OH)2 References: Remmert, Marc (2023) Personal Communication. Identified by Marc Remmert: Visual Identification |
| ⓘ Malachite Formula: Cu2(CO3)(OH)2 References: Remmert, Marc (2023) Personal Communication. Identified by Marc Remmert: Visual Identification |
| ⓘ Native Copper Formula: Cu References: Remmert, Marc (2023) Personal Communication. Identified by Marc Remmert: Visual Identification |
| ⓘ Parasymplesite Formula: Fe2+3(AsO4)2 · 8H2O References: Remmert, Marc (2023) Personal Communication. Identified by Marc Remmert: Visual Identification |
| ⓘ Pyrite Formula: FeS2 References: Remmert, Marc (2023) Personal Communication. Identified by Marc Remmert: Visual Identification |
| ⓘ Pyromorphite Formula: Pb5(PO4)3Cl References: Remmert, Marc (2023) Personal Communication. Identified by Marc Remmert: Visual Identification |
| ⓘ Schulenbergite Formula: (Cu,Zn)7(SO4)2(OH)10 · 3H2O References: Remmert, Marc (2023) Personal Communication. Identified by Marc Remmert: Visual Identification |
| ⓘ Siderite Formula: FeCO3 References: Remmert, Marc (2023) Personal Communication. Identified by Marc Remmert: Visual Identification |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Copper | 1.AA.05 | Cu |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Bornite | 2.BA.15 | Cu5FeS4 |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Goethite | 4.00. | Fe3+O(OH) |
| ⓘ | Cuprite | 4.AA.10 | Cu2O |
| ⓘ | Lepidocrocite | 4.FE.15 | Fe3+O(OH) |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Siderite | 5.AB.05 | FeCO3 |
| ⓘ | Cerussite | 5.AB.15 | PbCO3 |
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Anglesite | 7.AD.35 | PbSO4 |
| ⓘ | Brochantite | 7.BB.25 | Cu4(SO4)(OH)6 |
| ⓘ | Linarite | 7.BC.65 | PbCu(SO4)(OH)2 |
| ⓘ | Katerinopoulosite | 7.CC.60 | (NH4)2Zn(SO4)2 · 6H2O |
| ⓘ | Ktenasite | 7.DD.20 | ZnCu4(SO4)2(OH)6 · 6H2O |
| ⓘ | Schulenbergite | 7.DD.80 | (Cu,Zn)7(SO4)2(OH)10 · 3H2O |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| ⓘ | Pyromorphite | 8.BN.05 | Pb5(PO4)3Cl |
| ⓘ | Erythrite | 8.CE.40 | Co3(AsO4)2 · 8H2O |
| ⓘ | Parasymplesite | 8.CE.40 | Fe2+3(AsO4)2 · 8H2O |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Brochantite | Cu4(SO4)(OH)6 |
| H | ⓘ Erythrite | Co3(AsO4)2 · 8H2O |
| H | ⓘ Goethite | Fe3+O(OH) |
| H | ⓘ Ktenasite | ZnCu4(SO4)2(OH)6 · 6H2O |
| H | ⓘ Lepidocrocite | Fe3+O(OH) |
| H | ⓘ Linarite | PbCu(SO4)(OH)2 |
| H | ⓘ Malachite | Cu2(CO3)(OH)2 |
| H | ⓘ Parasymplesite | Fe32+(AsO4)2 · 8H2O |
| H | ⓘ Schulenbergite | (Cu,Zn)7(SO4)2(OH)10 · 3H2O |
| H | ⓘ Katerinopoulosite | (NH4)2Zn(SO4)2 · 6H2O |
| C | Carbon | |
| C | ⓘ Cerussite | PbCO3 |
| C | ⓘ Malachite | Cu2(CO3)(OH)2 |
| C | ⓘ Siderite | FeCO3 |
| N | Nitrogen | |
| N | ⓘ Katerinopoulosite | (NH4)2Zn(SO4)2 · 6H2O |
| O | Oxygen | |
| O | ⓘ Anglesite | PbSO4 |
| O | ⓘ Brochantite | Cu4(SO4)(OH)6 |
| O | ⓘ Cerussite | PbCO3 |
| O | ⓘ Cuprite | Cu2O |
| O | ⓘ Erythrite | Co3(AsO4)2 · 8H2O |
| O | ⓘ Goethite | Fe3+O(OH) |
| O | ⓘ Ktenasite | ZnCu4(SO4)2(OH)6 · 6H2O |
| O | ⓘ Lepidocrocite | Fe3+O(OH) |
| O | ⓘ Linarite | PbCu(SO4)(OH)2 |
| O | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | ⓘ Parasymplesite | Fe32+(AsO4)2 · 8H2O |
| O | ⓘ Pyromorphite | Pb5(PO4)3Cl |
| O | ⓘ Schulenbergite | (Cu,Zn)7(SO4)2(OH)10 · 3H2O |
| O | ⓘ Siderite | FeCO3 |
| O | ⓘ Katerinopoulosite | (NH4)2Zn(SO4)2 · 6H2O |
| P | Phosphorus | |
| P | ⓘ Pyromorphite | Pb5(PO4)3Cl |
| S | Sulfur | |
| S | ⓘ Anglesite | PbSO4 |
| S | ⓘ Bornite | Cu5FeS4 |
| S | ⓘ Brochantite | Cu4(SO4)(OH)6 |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Galena | PbS |
| S | ⓘ Ktenasite | ZnCu4(SO4)2(OH)6 · 6H2O |
| S | ⓘ Linarite | PbCu(SO4)(OH)2 |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Schulenbergite | (Cu,Zn)7(SO4)2(OH)10 · 3H2O |
| S | ⓘ Katerinopoulosite | (NH4)2Zn(SO4)2 · 6H2O |
| Cl | Chlorine | |
| Cl | ⓘ Pyromorphite | Pb5(PO4)3Cl |
| Fe | Iron | |
| Fe | ⓘ Bornite | Cu5FeS4 |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Goethite | Fe3+O(OH) |
| Fe | ⓘ Lepidocrocite | Fe3+O(OH) |
| Fe | ⓘ Parasymplesite | Fe32+(AsO4)2 · 8H2O |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Siderite | FeCO3 |
| Co | Cobalt | |
| Co | ⓘ Erythrite | Co3(AsO4)2 · 8H2O |
| Cu | Copper | |
| Cu | ⓘ Bornite | Cu5FeS4 |
| Cu | ⓘ Brochantite | Cu4(SO4)(OH)6 |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Cuprite | Cu2O |
| Cu | ⓘ Native Copper | Cu |
| Cu | ⓘ Ktenasite | ZnCu4(SO4)2(OH)6 · 6H2O |
| Cu | ⓘ Linarite | PbCu(SO4)(OH)2 |
| Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
| Cu | ⓘ Schulenbergite | (Cu,Zn)7(SO4)2(OH)10 · 3H2O |
| Zn | Zinc | |
| Zn | ⓘ Ktenasite | ZnCu4(SO4)2(OH)6 · 6H2O |
| Zn | ⓘ Schulenbergite | (Cu,Zn)7(SO4)2(OH)10 · 3H2O |
| Zn | ⓘ Katerinopoulosite | (NH4)2Zn(SO4)2 · 6H2O |
| As | Arsenic | |
| As | ⓘ Erythrite | Co3(AsO4)2 · 8H2O |
| As | ⓘ Parasymplesite | Fe32+(AsO4)2 · 8H2O |
| Pb | Lead | |
| Pb | ⓘ Anglesite | PbSO4 |
| Pb | ⓘ Cerussite | PbCO3 |
| Pb | ⓘ Galena | PbS |
| Pb | ⓘ Linarite | PbCu(SO4)(OH)2 |
| Pb | ⓘ Pyromorphite | Pb5(PO4)3Cl |
Other Databases
| Wikipedia: | https://de.wikipedia.org/wiki/Grube_Silberhardt |
|---|---|
| Wikidata ID: | Q1550113 |
Mindat Articles
The Silberhardt Mine - a short overview of the history and geology by Marc RemmertOther Regions, Features and Areas containing this locality
Eurasian PlateTectonic Plate
- Rheno-Hercynian BeltOrogenic Belt
EuropeContinent
- Rhenish MassifMassif
Germany
- North Rhine-Westphalia
- Bergisches LandMountain Range
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.





Silberhardt Mine, Öttershagen, Windeck, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany