Pyrargyrite from Colombia
Colombia | |
| Benjamin LeRoy Miller, Joseph Theophilus Singewald (1924) The mineral deposits of South America. McGraw Hill 598pp |
| Publications of the Field Columbian Museum Geological Series Vol 1 1895-1902 pp 121-177 |
| Publications of the Field Columbian Museum Geological Series Vol 1 1895-1902 pp 121-177 |
Publications of the Field Columbian Museum Geological Series Vol 1 1895-1902 pp 121-177 | |
Publications of the Field Columbian Museum Geological Series Vol 1 1895-1902 pp 121-177 | |
| Publications of the Field Columbian Museum Geological Series Vol 1 1895-1902 pp 121-177 |