Bertrandite from selected localities.
Portugal | |
| Pedro Alves collection |
| Martin Slama Collection |
| |
| Nuno Afonso collection |
Pedro Alves collection |
Portugal | |
| Pedro Alves collection |
| Martin Slama Collection |
| |
| Nuno Afonso collection |
Pedro Alves collection |
Romãs quarry, U.F Romãs Decermilo e Vila Longa, Sátão, Viseu, Portugal