The stratiform deposits have yielded carrollite, linnaeite, trogtalite, cobaltomenite, heterogenite (both 3R and 2H polytypes), julienite, kolwezite and sphaerocobaltite.
The only cobalt sulfides present are carrollite and linnaeite, but the selenide trogtalite is also associated.
Linnaeite, with a cobalt content of 58%, is very rare in Katanga, and occurrences in The Katanga Crescent are few.
Linnaeite is present only in the form of massive ore, in association with other sulfides.
Many of them occur only in microscopic sizes (siegenite, rammelsbergite, linnaeite
, lautite, tennantite) and most are uncolorful (galena, sphalerite, molybdenite, millerite, chalcocite), unlike the secondary minerals such as malachite, azurite and cyanotrichite.