| | Description | |
| Quality of samples: | not specified / average specimens | | Confirmation | |
| Validity: | Believed Valid | | References | |
| References: | R. Pierrot, R. Pulou, P. Picot : "Inventaire Minéralogique de la France N° 7 : Aveyron", BRGM, 1977 | | Data | |
| Mineral Data: | Click here to view Alum Group data | | Locality Data: | Click here to view Le Gua, Aubin, Decazeville coal basin, Decazeville, Aveyron, Midi-Pyrénées, France |
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