Chalcopyrite from selected localities.
South Africa | |
| Clarke, L. B. (1989). The Geology of the Kruidfontein Volcanic Complex Transvaal. S. Africa (Doctoral dissertation, University of Leicester). |
| Vaughan, D.J. (1969) Nickelian mackinawite from Vlakfontein, Transvaal. American Mineralogist: 54: 1190–1193. |