Augite from Namakwa District Municipality, Northern Cape, South Africa
South Africa | |
| Cairncross, B., Dixon, R. (1995) Minerals of South Africa. Geological Society of South Africa, Linden . |
USGS Open File report 02-189 | |
| Cairncross, B., Dixon, R. (1995) Minerals of South Africa. Geological Society of South Africa, Linden . |
| Woolf, Debbie (2023) Personal Communication. |