Muscovite from Vereeniging - Sasolburg coalfields, Fezile Dabi District Municipality, Free State, South Africa
South Africa | |
| [var. Illite] International Journal of Coal Geology 72 (2007) 124–140 |
South Africa | |
| [var. Illite] International Journal of Coal Geology 72 (2007) 124–140 |