Hollandite from Gila Mountains, USA
USA | |
| "Microminerals from the Big Lue Mountains", Ron Gibbs, 13th Annual New Mexico Mineral Symposium, November 14-15, 1992. |
| Merritt Stephen Enders (2000) The Evolution of Supergene Enrichment in the Morenci Porphyry Copper Deposit, Greenlee County, Arizona. PhD Thesis, University of Arizona |
| Ronald Gibbs, Microminerals from the Big Lue Mountains, 13th Annual New Mexico Mineral Symposium, November 14-15, 1992 |
Coal Creek, Big Lue Mountains, Grant County, New Mexico, USA