Mineralienatlas - Fossilienatlas
Hollandite (Hollandit) |
Pictures (31 Images total)
Views (File: ): 1991, Rating: 9.5
Hollandit Grube Neue Rhonard bei Olpe. Stufengröße: 10 x 8 cm; Macroaufnahme: Stackingverfahren aus 4 Einzelbilder Copyright: Matthias Reinhardt; Contribution: Matthias Reinhardt Collection: Matthias Reinhardt Location: Deutschland/Nordrhein-Westfalen/Arnsberg, Bezirk/Olpe, Kreis/Grube Neue Rhonard Mineral: Hollandite Image: 1506195455 Rating: 9.5 (votes: 8) License: Usage for Mineralienatlas project only |
Hollandit X |
Grube Neue Rhonard bei Olpe. Stufengröße: 10 x 8 cm; Macroaufnahme: Stackingverfahren aus 4 Einzelbilder |
Collection: | Matthias Reinhardt |
Copyright: | Matthias Reinhardt |
Contribution: Matthias Reinhardt 2017-09-23 |
Locality: Grube Neue Rhonard / Olpe, Kreis / Arnsberg, Bezirk / Nordrhein-Westfalen / Deutschland |
Views (File: ): 88
Hollandit Grube Molitor, Elben; Bildbreite: 13 mm. Copyright: Matthias Reinhardt; Contribution: Matthias Reinhardt Collection: Matthias Reinhardt Location: Deutschland/Nordrhein-Westfalen/Arnsberg, Bezirk/Olpe, Kreis/Wenden/Altenberger Gangzug/Grube Molitor Mineral: Hollandite Image: 1673367520 Rating: 9 (votes: 1) License: Usage for Mineralienatlas project only |
Hollandit |
Grube Molitor, Elben; Bildbreite: 13 mm. |
Collection: | Matthias Reinhardt |
Copyright: | Matthias Reinhardt |
Contribution: Matthias Reinhardt 2023-01-10 |
Locality: Grube Molitor / Altenberger Gangzug / Wenden / Olpe, Kreis / Arnsberg, Bezirk / Nordrhein-Westfalen / Deutschland |
Views (File: ): 14
Hollandit, feinnadelig, grauschwarz Griechenland/Attika (Attikí, Attica)/East Attica/Lavreotiki/Lavrion (Laurion), Bergbaudistrikt/Km 3, Revier/Kaminiza Minen; Bildbreite 1,1 mm Copyright: Hannes Osterhammer; Contribution: Münchener Micromounter Collection: Lithothek der Münchener Micromounter, Collection number: A030879, Donator: Traute und Hannes Osterhammer Location: Griechenland/Attika (Attikí, Attica)/East Attica/Lavreotiki/Lavrion (Laurion), Bergbaudistrikt/Km 3, Revier/Km 3 Minen/Km 3 Tagebau Mineral: Hollandite Image: 1741867545 Rating: 9 (votes: 1) License: Usage for Mineralienatlas project only |
Hollandit, feinnadelig, grauschwarz (SNr: A030879) |
Griechenland/Attika (Attikí, Attica)/East Attica/Lavreotiki/Lavrion (Laurion), Bergbaudistrikt/Km 3, Revier/Kaminiza Minen; Bildbreite 1,1 mm |
Collection: | Lithothek der Münchener Micromounter |
Copyright: | Hannes Osterhammer |
Contribution: Münchener Micromounter 2025-03-13 |
Locality: Km 3 Tagebau / Km 3 Minen / Km 3, Revier / Lavrion (Laurion), Bergbaudistrikt / Lavreotiki / East Attica / Attika (Attikí, Attica) / Griechenland |
Views (File: ): 289
Hollandit Deutschland/Baden-Württemberg/Freiburg, Bezirk/Ortenaukreis/Oberwolfach/Grube Clara. Bilsdbreite 12 mm Copyright: Joachim Burow; Contribution: Ulrich Baumgärtl Collection: Clara Museum Location: Deutschland/Baden-Württemberg/Freiburg, Bezirk/Ortenaukreis/Oberwolfach/Grube Clara Mineral: Hollandite Image: 1634129348 Rating: 8 (votes: 1) License: Usage for Mineralienatlas project only |
Hollandit |
Deutschland/Baden-Württemberg/Freiburg, Bezirk/Ortenaukreis/Oberwolfach/Grube Clara. Bilsdbreite 12 mm |
Collection: | Clara Museum |
Copyright: | Joachim Burow |
Contribution: Ulrich Baumgärtl 2021-10-13 |
Locality: Grube Clara / Oberwolfach / Ortenaukreis / Freiburg, Bezirk / Baden-Württemberg / Deutschland |
Views (File: ): 83
Hollandit metallglänzende, nadelige Hollandit Kristalle in büscheligen Aggregaten. BB ? 5,5 mm. Modified by CombineZP: Griechenland/Attika (Attikí, Attica)/East Attica/Lavreotiki/Lavrion (Laurion), Bergbaudistrikt/Km 3, Revier/Kaminiza Minen/Esperanza Mine Copyright: horst knoll; Contribution: horst knoll Collection: Horst Knoll - ex Slg. Helmut Büttner Location: Griechenland/Attika (Attikí, Attica)/East Attica/Lavreotiki/Lavrion (Laurion), Bergbaudistrikt/Km 3, Revier/Kaminiza Minen/Esperanza Mine Mineral: Hollandite Image: 1687362340 Rating: 8 (votes: 1) License: Usage for Mineralienatlas project only |
Hollandit |
metallglänzende, nadelige Hollandit Kristalle in büscheligen Aggregaten. BB ? 5,5 mm. Modified by CombineZP: Griechenland/Attika (Attikí, Attica)/East Attica/Lavreotiki/Lavrion (Laurion), Bergbaudi... |
Collection: | Horst Knoll - ex Slg. Helmut Büttner |
Copyright: | horst knoll |
Contribution: horst knoll 2023-06-21 |
Locality: Esperanza Mine / Kaminiza Minen / Km 3, Revier / Lavrion (Laurion), Bergbaudistrikt / Lavreotiki / East Attica / Attika (Attikí, Attica) / Griechenland |
Collectors Summary
Color | grauschwarz, schwarz, silberschwarz |
Streak color | schwarz |
Lustre | Metallglanz |
Hardness (Mohs) | 4 - 6 |
Solubility | +++ HCl |
Crystal System | monoklin, I2/m |
Additional information / Summary
In 2012 überarbeitete die IMA die Nomenklatur für die Hollandit-Supergruppe. Hollandit wird nun neu definiert als das (mehr verbreitete) Ba-Mn3+ Endglied der Coronadit-Gruppe. Das Typmaterial für Hollandit ist nun Ferrihollandit, ein neuer Name für das Ba-Fe3+ Endglied (Biagioni et al 2013). Die ursprüngliche Typlokalität für Hollandit ist nun die des Ferrihollandit; die Lokation für den Neotyp von Hollandit ist Gowari Wadhona (fälschlich auch "Gowani Wadhona" in Biagioni et al 2013). Das bisher als Hollandit bezeichnete Mineral ist nun unter Ferrihollandit zu finden. |
Chemism
Chemical formula |
Ba(Mn4+6Mn3+2)O16 |
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Chemical composition |
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Analysis wt% |
BaO : 16.08, Al2O3 : 0.50, Fe2O3 : 12.02, MnO : 5.44, MnO2 : 65.92 (Ref: Acta Crystallographica 60) |
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Strunz 9th edition incl. updates |
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4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate) |
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Lapis Classification |
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IV: OXIDE |
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Hey's Chemical Index of Minerals |
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07: Oxides and Hydroxides |
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Dana 8th edition |
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07: Multiple Oxides |
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Mineral status |
anerkanntes Mineral |
IMA Classification
IMA Classification |
Hollandite supergroup ⇒ Coronadite group |
Optical Properties
grauschwarz, schwarz, silberschwarz |
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schwarz |
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opak |
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Metallglanz |
Crystallography
Crystals 3D
Open larger view |
Crystal Structure 3D
Open larger view |
Physical Properties
4 - 6 |
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4.95 (gemessen) |
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4.949 ( ρ calc. Mineralienatlas ) |
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Instability |
+++ HCl |
(Co-)Type locality
(Co-)Type locality |
Indien/Madhya Pradesh/Chhindwara, Distrikt/Sausar/Gwari-Wadhona/Gowari Wadhona Mine |
Preface
Name from |
Dr. Thomas Henry Holland (1868-1947), Direktor des Indian Geological Survey. |
References
The crystal structure of hollandite - Locality: Gowari Wadhona, India - Database code amcsd 0014428, Mineralogical Journal 13 (1986) 119-129 - [Röntgenstrukturanalyse] European Journal of Mineralogy Volume 25 Number 1 (2013), p. 85 - 90 Acta Crystallographica B38 (1982) 1056-1065 Fe3+ Hollandite - Stuor Njuoskes, Sweden - Diffraction Data - [Diffraction-Data] |
IMA group assignments
Other languages
German |
Hollandit |
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English |
Hollandite |
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Russian |
Голландит |
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Traditional Chinese |
錳鋇礦 |
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Simplified Chinese |
锰钡矿 |
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Japanese |
ホ-ランド鉱 |
Alternative Name
Italian |
Hollandita |
CNMNC symbol
Symbol |
Hol |
Automatic Links to external internet sources (Responsibility is with the operator)
Mineral Dealer
Locations with GPS information
IDs
GUSID (Global unique identifier short form) | j-mAwNCqNU6P9la1ICkgrg |
GUID (Global unique identifier) | C080E98F-AAD0-4E35-8FF6-56B5202920AE |
Database ID | 7643 |