| | Description | |
| Quality of samples: | not specified / average specimens | | Confirmation | |
| Validity: | Believed Valid | | References | |
| References: | Paolo Castello: Lo Ialofane e gli altri minerali del giacimento piombo-baritico del Trou des Romains, (Courmayeur, Valle d'Aosta) - Rivista Mineralogica Italiana, Milano, Vol. 8, Fasc. 1, 1977 | | Data | |
| Mineral Data: | Click here to view Berthierite data | | Locality Data: | Click here to view Trou des Romains, Sapin Valley, Courmayeur, Aosta Valley, Italy |
|