| | Description | |
| Comments: | Associated with black microcrystalline quartz or with deeply silicified facies. | | Quality of samples: | not specified / average specimens | | Confirmation | |
| Validity: | Believed Valid | | References | |
| References: | P.G. Pélisson : "Etude Minéralogique et Métallogénique du District Filonien Polytype de Paulhaguet (Haute-Loire, Massif Central Français)", Doctorate Thesis, Orléans, France, 1989 | | Data | |
| Mineral Data: | Click here to view Illite data | | Locality Data: | Click here to view Fluorite Mine, Praclos, Tailhac, Langeac, Haute-Loire, Auvergne, France |
|