| Mineral | Sublocality | Reference |
|---|
| Bastinite | Custer Mountain lode (Snookum mine), Custer, Custer Mining District, Custer County, South Dakota, USA | |
| Wyllieite | Old Mike mine (Great Northern; Old Mike M.S.2212), Custer, Custer Mining District, Custer County, South Dakota, USA | Moore et al. (1973) |
| Rosemaryite | Rock Ridge pegmatite, Custer, Custer Mining District, Custer County, South Dakota, USA | |
| Ferrobobfergusonite | Victory Mine, Custer, Custer Mining District, Custer County, South Dakota, USA | Yang et al. (2021) |
| Ferrowyllieite | Victory Mine, Custer, Custer Mining District, Custer County, South Dakota, USA | Moore et al. (1973) |
| Ehrleite | Tip Top Mine, Fourmile, Custer Mining District, Custer County, South Dakota, USA | Robinson et al. (1985) |
| Fransoletite | Tip Top Mine, Fourmile, Custer Mining District, Custer County, South Dakota, USA | |
| Jahnsite-(CaMnMg) | Tip Top Mine, Fourmile, Custer Mining District, Custer County, South Dakota, USA | Moore et al. (1974) |
| Jahnsite-(NaFeMg) | Tip Top Mine, Fourmile, Custer Mining District, Custer County, South Dakota, USA | |
| Pahasapaite | Tip Top Mine, Fourmile, Custer Mining District, Custer County, South Dakota, USA | Rouse et al. (1987) |
| Parafransoletite | Tip Top Mine, Fourmile, Custer Mining District, Custer County, South Dakota, USA | |
| Pararobertsite | Tip Top Mine, Fourmile, Custer Mining District, Custer County, South Dakota, USA | Roberts et al. (1989) |
| Robertsite | Tip Top Mine, Fourmile, Custer Mining District, Custer County, South Dakota, USA | Moore et al. (1974) |
| Segelerite | Tip Top Mine, Fourmile, Custer Mining District, Custer County, South Dakota, USA | Moore et al. (1974) |
| Tinsleyite | Tip Top Mine, Fourmile, Custer Mining District, Custer County, South Dakota, USA | Dunn et al. (1984) |
| Tiptopite | Tip Top Mine, Fourmile, Custer Mining District, Custer County, South Dakota, USA | Grice et al. (1985) |
| Whiteite-(CaMnMg) | Tip Top Mine, Fourmile, Custer Mining District, Custer County, South Dakota, USA | Grice et al. (1989) |
| Walentaite | White Elephant Mine, Cicero Peak, Pringle, Custer Mining District, Custer County, South Dakota, USA | Dunn et al. (1984) |
| Tantalite-(Fe) | Upper Bear Gulch, Tinton Pegmatite Mining District, Lawrence County, South Dakota, USA | |
| Griphite | Everly Mine (Riverton lode), Harney City, Pennington County, South Dakota, USA | Headden (1891) |
| Maghagendorfite | Dike Lode, Keystone Mining District, Pennington County, South Dakota, USA | Moore et al. (1979) |
| Loomisite | Big Chief Mine, Glendale, Keystone Mining District, Pennington County, South Dakota, USA | Yang et al. (2023) |
| Metavivianite | Big Chief Mine, Glendale, Keystone Mining District, Pennington County, South Dakota, USA | Ritz et al. (1974) |
| Olmsteadite | Big Chief Mine, Glendale, Keystone Mining District, Pennington County, South Dakota, USA | Moore et al. (1976) |
| Perloffite | Big Chief Mine, Glendale, Keystone Mining District, Pennington County, South Dakota, USA | Kampf (1977) |
| Sinkankasite | Barker-Ferguson Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA | Peacor et al. (1984) |
| Johnwalkite | Champion Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA | Dunn et al. (1986) |
| Černýite | Hugo Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA | Kissin et al. (1978) |
| Arrojadite-(KFe) | Nickel Plate Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA | |
