Diorite from Central America
Honduras | |
| (1957) Mineral deposits of Central America, with a section on manganese deposits of Panama. Bulletin Vol. 1034. US Geological Survey doi:10.3133/b1034 |
Nicaragua | |
| Royal Road Minerals |
Honduras | |
| (1957) Mineral deposits of Central America, with a section on manganese deposits of Panama. Bulletin Vol. 1034. US Geological Survey doi:10.3133/b1034 |
Nicaragua | |
| Royal Road Minerals |