Some emerald-hosting, magnesite-rich rocks of the Gujar Kili area contain sulphides and sulpharsenides (Arif, 2003).
Refs.:
Arif, M. (2003): Sulphides and sulpharsenides in the emerald-hosting rocks from the Indus suture zone in Swat, NW Pakistan. Swiss Bulletin of Mineralogy and Petrology, 83, 261-271.
http://www.gems-afghan.com/articles/gujar.htm15 entries listed. 12 valid minerals.