English: A lot of black single crystal aggregates of the extremely rare selenium mineral stilleite from the famous deposit of Shinkolobwe (Shinkolobwe Mine, Shinkolobwe, Kambove, Haut-Katanga, DR Congo), that it is the type locality. Stilleite is the selenium analog of sphalerite. Ex Vandenbroucke Museum collection specimen, from Waregem, Belgium.