| Name: | Manjiroite Mji |
| IMA Chemistry: | Na(Mn4+7Mn3+)O16 |
| Chemistry Elements: | The mineral Manjiroite contains elements: Sodium (Na) Manganese (Mn) Oxygen (O) |
| Country of Type Locality: | Japan |
| Year First Published: | 1966 |
| IMA Status: | Approved |
| Status Notes: | Nambu M, Tanida K (1967) Manjirōite, a new manganese dioxide mineral, from Kohare Mine, Iwate Prefecture, Japan, Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists 58, 39-54 Chemical formula changed from Na(Mn^4+^,Mn^2+^)_8_O_16_·nH_2_O: Biagioni C, Capalbo C, Pasero M (2013) Nomenclature tunings in the hollandite supergroup. European Journal of Mineralogy 25, 85-90 |
| Structural Group Name: | Coronadite |
| Fleischer's Group Name: | coronadite |
| Crystal Systems: | tetragonal |
| Oldest Known Age: | 2400 Million Years Ago |
| More Info: | Search Wikipedia: Manjiroite (Wiki) Search Mindat: Manjiroite Search Web Mineral DB: Manjiroite |