Mineralienatlas - Fossilienatlas
Todorokite |
Pictures (57 Images total)
Views (File: ): 163
Todorokit xx von den Halden der ⚒ Glücksrad, Oberschulenberg, Schulenberg im Oberharz, Goslar, Niedersachsen, DE, Bildbreite ca.3mm Copyright: harzer; Contribution: harzer Collection: harzer Location: Deutschland/Niedersachsen/Goslar, Landkreis/Schulenberg im Oberharz/Oberschulenberg/Grube Glücksrad Mineral: Todorokite Image: 1685900681 Rating: 10 (votes: 1) License: Usage for Mineralienatlas project only |
Todorokit xx |
von den Halden der ⚒ Glücksrad, Oberschulenberg, Schulenberg im Oberharz, Goslar, Niedersachsen, DE, Bildbreite ca.3mm |
Collection: | harzer |
Copyright: | harzer |
Contribution: harzer 2023-06-04 |
Locality: Grube Glücksrad / Oberschulenberg / Schulenberg im Oberharz / Goslar, Landkreis / Niedersachsen / Deutschland |
Views (File: ): 72
Todorokit ![]() Todorokit oder Kryptomelan; Geraberg,Morgensternhalde,Thüringen; Stufengröße: 5 x 3 cm Copyright: Rockhounder; Contribution: Rockhounder Collection: Rockhounder Location: Deutschland/Thüringen/Ilm-Kreis/Geraberg Mineral: Cryptomelane, Todorokite Image: 1730627329 Rating: 10 (votes: 1) License: Usage for Mineralienatlas project only |
Todorokit ![]() |
Todorokit oder Kryptomelan; Geraberg,Morgensternhalde,Thüringen; Stufengröße: 5 x 3 cm |
Collection: | Rockhounder |
Copyright: | Rockhounder |
Contribution: Rockhounder 2024-11-03 |
Locality: Geraberg / Ilm-Kreis / Thüringen / Deutschland |
Views (File: ): 1544
Todorokit Größe: 40x35 mm; Fundort: Smartt Mine, Kalahari Manganfeld, Provinz Nordkap, Südafrika Copyright: Onlineminerals.com; Contribution: Philip Blümner Location: Südafrika/Nordkap (Northern Cape), Provinz/Kalahari Manganese Field/Smartt Mine Mineral: Todorokite Image: 1259412887 Rating: 9 (votes: 1) License: Usage for Mineralienatlas project only |
Todorokit |
Größe: 40x35 mm; Fundort: Smartt Mine, Kalahari Manganfeld, Provinz Nordkap, Südafrika |
Copyright: | Onlineminerals.com |
Contribution: Philip Blümner 2009-11-28 |
Locality: Smartt Mine / Kalahari Manganese Field / Nordkap (Northern Cape), Provinz / Südafrika |
Views (File: ): 130
Todorokit xx (visuell bestimmt) auf Coelestin von der ⚒ Hoher Trost, Bad Lauterberg im Harz, Göttingen, Niedersachsen, DE, Stufenbreite ca.7cm Copyright: harzer; Contribution: harzer Collection: harzer Location: Deutschland/Niedersachsen/Göttingen, Landkreis/Bad Lauterberg im Harz/Grube Hoher Trost (Hohe Trost) Mineral: Todorokite Image: 1681464704 Rating: 9 (votes: 1) License: Usage for Mineralienatlas project only |
Todorokit xx |
(visuell bestimmt) auf Coelestin von der ⚒ Hoher Trost, Bad Lauterberg im Harz, Göttingen, Niedersachsen, DE, Stufenbreite ca.7cm |
Collection: | harzer |
Copyright: | harzer |
Contribution: harzer 2023-04-14 |
Locality: Grube Hoher Trost (Hohe Trost) / Bad Lauterberg im Harz / Göttingen, Landkreis / Niedersachsen / Deutschland |
Views (File: ): 42
Todorokit xx (visuell bestimmt) auf Pyrolusit aus dem Steinbruch Winterberg, Bad Grund, Göttingen, Niedersachsen, DE, Bildbreite ca.4mm Copyright: harzer; Contribution: harzer Collection: harzer Location: Deutschland/Niedersachsen/Göttingen, Landkreis/Bad Grund/Steinbruch Winterberg Mineral: Todorokite Image: 1727878185 Rating: 9 (votes: 1) License: Usage for Mineralienatlas project only |
Todorokit xx |
(visuell bestimmt) auf Pyrolusit aus dem Steinbruch Winterberg, Bad Grund, Göttingen, Niedersachsen, DE, Bildbreite ca.4mm |
Collection: | harzer |
Copyright: | harzer |
Contribution: harzer 2024-10-02 |
Locality: Steinbruch Winterberg / Bad Grund / Göttingen, Landkreis / Niedersachsen / Deutschland |
Collectors Summary
Color | violettgrau, braun bis schwarz, braun im Durchlicht |
Streak color | dunkelbraun |
Lustre | Sub-Glasglanz, Wachsglanz, Fettglanz, Halbmetallglanz |
Hardness (Mohs) | 1.5 |
Cleavages | vollkommen {100} und {010} |
Fracture | vollkommen {100}, {010} |
Solubility | +++ konz. HCl |
Crystal System | monoklin, P2/m |
Chemism
Chemical formula |
(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12·3-4H2O |
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Empirical formula (analysis) |
(Ca0.48Mn2+0.40K0.08Na0.05)(Mn4+5.06Mn2+0.77Mg0.17)O12·3.62H2O |
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Chemical composition |
Aluminium, Barium, Calcium, Magnesium, Mangan, Natrium, Strontium, Kalium, Sauerstoff, Wasserstoff |
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Analysis wt% |
MnO2 : 71.75, MnO : 8.62, CaO : 1.40, BaO : 4.32, K2O : 0.91, MgO : 2.13, H2O : 9.95 (Ref: American Mineralogist 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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Classification by Hölzel |
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4: OXIDES |
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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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IMA status |
Anerkannt von der CNMNC |
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Mineral status |
anerkanntes Mineral |
Optical Properties
Crystallography
Crystals 3D
Open larger view |
Crystal Structure 3D
Open larger view |
Physical Properties
1.5 |
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3.66 (gemessen) 3.67 (berechnet) |
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3.923 ( ρ calc. Mineralienatlas ) |
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vollkommen {100} und {010} |
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vollkommen {100}, {010} |
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spröde |
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Instability |
+++ konz. HCl |
(Co-)Type locality
(Co-)Type locality |
Japan/Hokkaidō (Hokkaido), Insel/Hokkaidō (Hokkaido), Präfektur/Shiribeshi, Unterpräfektur/Agaigawa-Mura/Todoroki Mine |
Type material |
Harvard University, Cambridge, Massachusetts, USA National Museum of Natural History, Washington, D.C., USA |
Collection number of type material |
106214 (Harvard) |
Preface
References
Other languages
German |
Todorokit |
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Spanish |
Todorokita |
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French |
Todorokite |
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English |
Todorokite |
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Russian |
Тодорокит |
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Traditional Chinese |
鈣錳礦 |
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Simplified Chinese |
钙锰矿 |
Alternative Name
English |
Delatorreite |
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Japanese |
轟石 |
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Traditional Chinese |
鋇鎂錳礦 |
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Simplified Chinese |
钡镁锰矿 |
CNMNC symbol
Symbol |
Tdr |
Automatic Links to external internet sources (Responsibility is with the operator)
Mineral Dealer
Locations with GPS information
IDs
GUSID (Global unique identifier short form) | Q6wlPiWep06mTtsQUZX8Dg |
GUID (Global unique identifier) | 3E25AC43-9E25-4EA7-A64E-DB105195FC0E |
Database ID | 3870 |