Phosphosiderite from Pennington County, South Dakota, USA
USA | |
| Campbell, T.J., Roberts, W.L. (1985) Mineral Localities in the Black Hills of South Dakota. Rocks & Minerals: 60(3): 109-118 (116). |
| Rocks & Minerals: 67(6): 380-388. |
USA | |
| Campbell, T.J., Roberts, W.L. (1985) Mineral Localities in the Black Hills of South Dakota. Rocks & Minerals: 60(3): 109-118 (116). |
| Rocks & Minerals: 67(6): 380-388. |