| | Description | |
| Quality of samples: | not specified / average specimens | | Confirmation | |
| Validity: | Believed Valid | | References | |
| References: | Kobutsugaku Zasshi, 18, 17–30; American Mineralogist, 84, pages 913–921, 1999 | | Data | |
| Mineral Data: | Click here to view Hellandite-(Y) data | | Locality Data: | Click here to view Tawara (Tahara), Hirukawa, Nakatsugawa City, Gifu Prefecture, Chubu Region, Honshu Island, Japan |
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