This is a fantastic specimen of Cuprosklodowskite with Vandenbrandeite from the Type Locality for both species. The very good Cuprosklodowskite crystals are very large for the locality. The Vandenbrandeite builds sheaves to 8 mm, huge for the locality. Vaes discovered these minerals in the early 1930's in this remote area of Katanga. Kalongwe is located 60 km south of Kolwezi and was not very well accessible in that time because it lies in full jungle. This is why the deposit has never been mined, and will probably never be, so very few specimens reached the collectors.