Equatorial Guinea has had isolated reports of diamond occurrences, in particular the Nsork area in the south of the country. The adjacent Mitzic diamond region in Gabon contains reported diamond occurrences. Structural lineaments containing basic intrusives extend along strike from the Mitzic diamond occurrence into the Nsork area. Such structural lineaments are prime targets for the emplacement of kimberlitic pipes and dykes. This area’s heavy mineral sampling results have been negative, except for zinc-rich chromites. At Mitzic, such zinc-rich chromites are only found in close proximity to diamondiferous locations.