0681 Stepite, Geschieber vein, Svornost Mine (Einigkeit Mine), Jachymov (St Joachimsthal), Jachymov (St Joachimsthal) District, Krusne Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Bohmen; Boehmen), Czech Republic
Type locality. A uranium arsenate that occurs as green tabular crystals and spherical aggregates on weathered arsenic matrix.