| Locality type: | Quarry |
| Classification |
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| Species: | Pyrolusite |
| Formula: | Mn4+O2 |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Pyrolusite data |
| Locality Data: | Click here to view Hufgard quarry, Feldkahl, Hösbach, Aschaffenburg District, Lower Franconia, Bavaria, Germany |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 163727 |
| Long-form Identifier: | 1:3:163727:4 |
| GUID (UUID V4): | 83ab0810-9963-4908-b91d-754fb1ead026 |
| Nearest other occurrences of Pyrolusite |
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| 3.8km (2.4 miles) | ⓘFuchs Quarry, Hartkoppe, Sailauf, Aschaffenburg District, Lower Franconia, Bavaria, Germany |
| 5.4km (3.4 miles) | ⓘBeschertglück mine, Schöllkrippen, Aschaffenburg District, Lower Franconia, Bavaria, Germany |
| 8.2km (5.1 miles) | ⓘElisabeth Mine, Hain im Spessart, Laufach, Aschaffenburg District, Lower Franconia, Bavaria, Germany |
| 15.8km (9.8 miles) | ⓘ"Im Lochborn" Copper mine, Bieber, Biebergemünd, Main-Kinzig-Kreis, Darmstadt, Hesse, Germany |
| 25.0km (15.6 miles) | ⓘKlein-Umstadt, Groß-Umstadt, Darmstadt-Dieburg, Darmstadt, Hesse, Germany |
| 41.2km (25.6 miles) | ⓘBerggeist Mine, Weiße Mauer, Ober-Kainsbach, Reichelsheim, Odenwaldkreis, Darmstadt, Hesse, Germany |
| 42.5km (26.4 miles) | ⓘClay pit, Vierstöck, Reichelsheim, Odenwaldkreis, Darmstadt, Hesse, Germany |
| 47.1km (29.3 miles) | ⓘManganese mine, Ober-Rosbach (Oberrosbach), Rosbach vor der Höhe, Wetteraukreis, Darmstadt, Hesse, Germany |
| 48.0km (29.9 miles) | ⓘOber-Ostern, Reichelsheim, Odenwaldkreis, Darmstadt, Hesse, Germany |
| 54.5km (33.8 miles) | ⓘLinck marble works, Auerbach, Bensheim, Bergstraße, Darmstadt, Hesse, Germany |
| References |
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| Reference Search (possible matching items) |
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 | Manceau, Alain, Kersten, Michael, Marcus, Matthew A., Geoffroy, Nicolas, Granina, Liba (2007) Ba and Ni speciation in a nodule of binary Mn oxide phase composition from Lake Baikal. Geochimica et Cosmochimica Acta, 71 (8) 1967-1981 doi:10.1016/j.gca.2007.02.007 | Journal (article/letter/editorial) | | Johannes Gutenberg-University, D-55099 Mainz, Germany c Advanced Light Source, Lawrence Berkeley National...‘‘Pisces’’ in 1990. These nodules had Fe/Mn ratios lower than all other ferromanganese precipitates previously...1969 Ba is added in red, the Mn layers from the lower right region are magenta, some in the middle and...this region of the sample, in agreement with the lower r value of the Ni–Mn population. Two other regions...references. (b) Romanechite standard from Hufgard quarry, Germany, (c) todorokite standard from Todoroki |  | | Journal (article/letter/editorial) | | higher than 15%. The accuracy of the method is also lower in (layer Mn3+, Mn4+) manganates, because the XANES...tectomanganates. Apart from the two stoichiometric forms pyrolusite (β-MnO2) and ramsdellite, which have tunnel dimensions...MANGANESE VALENCE STATES BY XANES Ramsdellite Pyrolusite Hollandite Psilomelane Todorokite Lithiophorite...representation of the main types of tectomanganates (pyrolusite, ramsdellite, hollandite, psilomelane = romanechtite...the selection of the assumed end-members (e.g., pyrolusite vs. ramsdellite), presumably because various |
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