Sericite from Namakwa District Municipality, Northern Cape, South Africa
South Africa | |
| www.portergeo.com.au/database/mineinfo.asp?mineid=mn017 |
Econ Geol. (1995) 90:1934-1954 | |
| P. G. Sonhnge (1950) The Nababeep Near West Tungsten Mine, South Africa. American Mineralogist 35:931-940 |