- Mangualde (Mesquitela e Cunha Alta)
| van den Berg, W. (1992) Enkele vermaarde mineralenvindplaatsen in Midden-Portugal. Gea, 1992(1), 38-39 (in Dutch). Cassat, Y. M. F. D., & Orlandi, A. (1989). Rittmannite, a new mineral species of the whiteite group from the Mangualde granitic pegmatite, Portugal. Canadian Mineralogist, 27, 447-449. American Mineralogist (1988) 73, 1179-1181. Gramaccioli, Carlo M. (1981) Mangualde. Lapis, 6 (7-8) 27-30 |
Mangualde, Viseu, Portugal