Cu-Ag-Pb-Se deposit. The element selenium was discovered in eucairite from Skrikerum.
Ref.:
- Bindi, L. & Pratesi, G. (2005): Selenojalpaite, Ag3CuSe2, a new mineral species from the Skrikerum Cu–Ag–Tl selenide deposit, Smaland, southeastern Sweden, Canadian Mineralogist 43, 1373-1377
- Sandström, F. (2007): Skrikerum. Litiofilen 24 (1), 22-38