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Cínovec / Zinnwald (Cinvald), Erzgebirge; Krusné Hory Mts, Saxony & Ústí Region (Bohemia; Böhmen; Boehmen), Germany & Czech Republic
Sample description
Size of this specimen is 70 x 80 x 45 mm.
Chemical composition - Cu12As4S13, Cu4SO4(OH)6