Diaspore from Glosam Mining Village, Gloucester Farm, Western Belt, Gamagara Ridge, Northern Cape, South Africa
South Africa | |
| [var. Mangan-diaspore] Mineralogical Magazine (1997) 61:213-231 Gutzmer, J. (1996). Genesis and alteration of the Kalahari and Postmasburg manganese deposits, Griqualand West, South Africa (Doctoral dissertation, Rand Afrikaans University). |