Anatase from
Mexico | |
| Megaw, Peter (2023) Personal Communication. |
USA | |
| 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. |