Magnetite from selected localities.
USA | |
| UGMS Bull 117 Minerals and Mineral Localities of Utah |
| UGMS Bull 117 Minerals and Mineral Localities of Utah; Calkins, F. C.; Butler, B. S.; Heikes, V. C. (1943) Geology and ore deposits of the Cottonwood-American Fork area, Utah, with sections on history and production. USGS Professional Paper: 201 |