Goyazite from
USA | |
| Rocks & Minerals: 60: 117. |
| Campbell, T.J., Roberts, W.L. (1985) Mineral Localities in the Black Hills of South Dakota. Rocks & Minerals: 60(3): 109-118 (116). |
| Smith, Arthur E., Fritzsch, Eric (2000) SOUTH DAKOTA. Rocks & Minerals, 75 (3) 156-169 doi:10.1080/00357520009605635 |
Smith, Arthur E., Fritzsch, Eric (2000) SOUTH DAKOTA. Rocks & Minerals, 75 (3) 156-169 doi:10.1080/00357520009605635 | |
Loomis, T. (2011), News from the Black Hills, South Dakota. Mineral News in press | |
| Hutchinson, M., Slezak, P., Wendlandt, R., & Hitzman, M. (2022). Rare Earth Element Enrichment in the Weathering Profile of the Bull Hill Carbonatite at Bear Lodge, Wyoming, USA. Economic Geology, 117(4), 813-831. |
White Cap Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA