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Katerinopoulosite from
Silberhardt Mine, Öttershagen, Windeck, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
| Locality type: | Mine | |
| Classification | ||
|---|---|---|
| Species: | Katerinopoulosite | |
| Formula: | (NH4)2Zn(SO4)2 · 6H2O | |
| Comments: | 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) | |
| Confirmation | ||
| Validity: | Believed Valid | |
| Associated Minerals Based on Photo Data: | ||
| Ktenasite | 1 | |
| Data | ||
| Mineral Data: | Click here to view Katerinopoulosite data | |
| Locality Data: | Click here to view Silberhardt Mine, Öttershagen, Windeck, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany | |
| Data Identifiers | ||
| Mindat Occurrence Record ID: | 1528298 | |
| Long-form Identifier: | 1:3:1528298:1 | |
| GUID (UUID V4): | 0 | |
| References | ||
Silberhardt Mine, Öttershagen, Windeck, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany