(TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
| France | | |
| J. Chervet : "Les Minéraux Uranifères Français / Les Minéraux Secondaires", 1960, Institut des Sciences et Techniques Nucléaires - Saclay / PUF. |
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