(Prullans, La Cerdanya, Lleida, Catalunya, Espanya)
Outcrop of a conglomerate near to the Sant Marti dels Castells tunnel. The minerals are found cementing the conglomerate.
Ref.:
Calvo, M., Viñals, J. & Triviño, A.: Zálesiíte, felsobanyaite and fraipontite, in a conglomerate in Prullans, La Cerdanya, Catalonia (Spain). Mineral Up, Vol. I, 3, 49-51