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Grey flaky pyroaurite crystals. 8 cm wide historic sample from Siebenlehn near Nossen, northern Freiberg district, Erzgebirge, Saxony. With two old labels (Eisenbrucit/ferroan brucite is an old expression for a mixture of brucite, chlorite, pyroaurite and other minerals). (Author: Andreas Gerstenberg)

Grey flaky pyroaurite crystals. 8 cm wide historic sample from Siebenlehn near Nossen, northern Freiberg district, Erzgebirge, Saxony. With two old labels (Eisenbrucit/ferroan brucite is an old expression for a mixture of brucite, chlorite, pyroaurite and other minerals). (Author: Andreas Gerstenberg)

Dimensions: 600 x 450
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