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|May contain K replacing Na.|
|Coronadite Group > Hollandite Supergroup|
|Name:||Named in 1967 by Matsuo Nambu and Katsutoshi Tanida in honor of Dr. Manjiro Watanabe [1891 Japan - 1980 Japan], mineralogist, economic geologist and Professor at Tohoku University, Japan.|
This page provides mineralogical data about Manjiroite.
Classification of Manjiroite
|Strunz 8th edition ID:||4/D.08-10|
|Nickel-Strunz 10th (pending) edition ID:||4.DK.05a|
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
K : With large (+- medium-sized) cations; tunnel structures
|Dana 8th edition ID:||22.214.171.124|
7 : MULTIPLE OXIDES
9 : AB8X16
|Hey's CIM Ref.:||7.2.3|
7 : Oxides and Hydroxides
2 : Oxides of the alkali metals
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Type Occurrence of Manjiroite
|Type Locality:||Kohare mine, Karumai, Iwate Prefecture, Tohoku Region, Honshu Island, Japan|
|Year of Discovery:||1967|
Physical Properties of Manjiroite
Crystallography of Manjiroite
|Cell Parameters:||a = 9.91Å, c = 2.86Å|
|Ratio:||a:c = 1 : 0.289|
|Unit Cell Volume:||V 280.88 Å³ (Calculated from Unit Cell)|
|X-Ray Powder Diffraction:|
Chemical Properties of Manjiroite
May contain K replacing Na.
|Simplified for copy/paste:||Na(Mn4+7Mn3+)O16|
|Essential elements:||Mn, Na, O|
|All elements listed in formula:||Mn, Na, O|
Relationship of Manjiroite to other Species
|Member of:||Coronadite Group > Hollandite Supergroup|
|Other Members of Group:|
|Related Minerals - Nickel-Strunz Grouping):|
|Related Minerals - Hey's Index Grouping:|
Other Names for Manjiroite
|Health Warning:||No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.|
References for Manjiroite
American Mineralogist (1968): 53: 2103.
Mineralogical Society of Japan (1980): 14: 72.
Internet Links for Manjiroite
Localities for Manjiroite
The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
(TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
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