A pegmatite deposit.
Refs.:
- Bertelli L., Bottoni G., De Michele V., Orlandi P. (1982): I fosfati della Pegmatite di Mangualde (Portogallo). Riv. Mineral. Italiana , 3 , 67-82.
- Marzoni Fecia di Cossato Y. & Orlandi P. (1986): Nuovi dati sui fosfati di Mangualde (Portogallo). Rend. Soc. It. Min. Petr., 42, 263-270.
- Marzoni Fecia di Cossato Y., Orlandi P., Pasero M.(1989): Manganese-bearing beraunite from Mangualde, Portugal: mineral data and structure refinement. Can. Mineral., 27, 441-446.
- Gramaccioli, C.M. (1981). "Mangualde." Lapis, 6(Juillet/Août),pp:27-30+72.
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Map Reference: 40°36'N , 7°46'W
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