Gold from Chilcani District, Morochata, Ayopaya Province, Cochabamba, Bolivia
Bolivia | |
| Alfredo Petrov and Jaroslav Hyrsl collections |
Alfredo Petrov and Juan-Carlos Avaroa specimens |
Bolivia | |
| Alfredo Petrov and Jaroslav Hyrsl collections |
Alfredo Petrov and Juan-Carlos Avaroa specimens |