Brookite from Sonoran Desert, North America
USA | |
| Thorne, Brent (n.d.) Personal communcation. |
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 148 Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 33. |
| Thomas, William J., Gibbs, Ronald B. (1983) Famous Mineral Localities: The New Cornelia Mine, Ajo, Arizona. The Mineralogical Record, 14 (5) 283-298 Gilluly, J. (1946), The Ajo mining district, Arizona, USGS PP 209: 91. |
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 109, 148. |
Muntyan, B. (2012) Amethyst scepters from the Santo Nino Mine, Santa Cruz County, Arizona. Rocks & Minerals, 87, #2, 126-133. |
Joe & Grand Central shafts area dump, Tombstone Mining District, Cochise County, Arizona, USA