Calcite from Ngaka Modiri Molema District Municipality, North West, South Africa
South Africa | |
| Gomersall, S. (2013) Witkop Fluorspar Mine, Marico district, North West Province. South African Micromount Society newsletter: 39 (1) |
| Martini, I. (1978). Mineralogy of the Transvaal caves. South African Journal of Geology, 81(1), 47-54. |
Martini, I. (1978). Mineralogy of the Transvaal caves. South African Journal of Geology, 81(1), 47-54. | |
Econ Geol (1990) 85:1172-1185 | |
Woolley, A.R. (2001) Alkaline Rocks and Carbonatites of the World, Part 3: Africa. Geological Society, London, 384 p. | |
| South African Micromount newsletter, Vol.22 No.3 - April 1996 |
Martini, I. (1978). Mineralogy of the Transvaal caves. South African Journal of Geology, 81(1), 47-54. | |
| Harmony Gold |