| | Description | |
| Quality of samples: | not specified / average specimens | | Confirmation | |
| Validity: | Believed Valid | | References | |
| References: | T. Hirajima and R. Compagnoni : "Petrology of a jadeite-quartz-almandine-phengite fels with retrograde ferro-nyböite from the Dora-Maira Massif, Western Alps", Eur. Journ. Mineral., 1993, 5, pp 943-955. | | Data | |
| Mineral Data: | Click here to view Phengite data | | Locality Data: | Click here to view Isasca, Varaita Valley, Dora Maira Massif, Cuneo Province, Piedmont, Italy |
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