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Colombia | |
| Publications of the Field Columbian Museum Geological Series Vol 1 1895-1902 pp 121-177 |
| Manuela Zeug, Andrés Ignacio, Rodríguez Vargas, Lutz Nasdala (2017): Spectroscopic study of inclusions in gem corundum from Mercaderes, Cauca, Colombia. Physics and Chemistry of Minerals 44, 221-233. Romero, F.H., Rodríguez-Vargas, A.I. (2002): Caracterización mineralógica de los corindones de Mercaderes, Cauca (Colombia). Geol. Colomb. 27, 121–142. |
| [var. Ruby] Sutherland, F.L., Duroc-Danner, J.M., and Meffre, S. (2008): Ore Geology Reviews 34, 155-168. |
Río Mayo, Mercaderes, Cauca Department, Colombia