Hollandite from Mexico
Mexico | |
| Andrew G. Conly, Steven D. Scott, and Hervé Bellon (2011): Metalliferous Manganese Oxide Mineralization Associated with the Boléo Cu-Co-Zn District, Mexico. Economic Geology 106, 1173-1196. |
| Cross, B. & Culp Zeitner J. (2006), Geodes Natures Treasures, P.26 |
| Megaw, P.K.M., 1990b, Geology and geochemistry of the Santa Eulalia mining district, Chihuahua, Mexico.: Unpublished Ph.D. Thesis, Univ. of Arizona, 549 p |
| Ref.: Revista Mexicana de Ciencias Geológicas, volumen 17, número 2, p.143-153 (2000) |
Las Choyas, Aldama Municipality, Chihuahua, Mexico