Kumfa, Nigeria, Hausa att. July 27, 1972. 5-11790, acc no. 2879, file code 8.2. Collector: T. Lanagan. Donor: W. H. Lawson. Materials, techniques: Fragments of white mineral Context of use: Part of a group: 5-11789-11792 see card #5-11789 for use Description: Mineral, white chrystalline, used in treatment of cataract