| | Description | |
| Type Locality: | Mogurazawa mine, Kiryuu City, Gunma Prefecture, Kanto Region, Honshu Island, Japan is the type locality for Nagashimalite | | Quality of samples: | not specified / average specimens | | Confirmation | |
| Validity: | Believed Valid | | References | |
| References: | Mineral.Journ.Japan (1980) 10, 122-130 | | Data | |
| Mineral Data: | Click here to view Nagashimalite data | | Locality Data: | Click here to view Mogurazawa mine, Kiryuu City, Gunma Prefecture, Kanto Region, Honshu Island, Japan |
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