FMF Minerals Gallery

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A very rare pseudo: asbolane after calcite crystals on quartz from the Gott segne beständig mine, Spitzleithe, Schneeberg district, Erzgebirge, Saxony (type locality of lithiophorite!). The mine produced a lot of pseudo´s in the old days, even very unusual ones like manganese oxide after pyromorphite. They are mentioned in the famous mineralogical lexicon of the saxonian localities by August Frenzel (1874). The shown 5 cm wide specimen comes from the well-known Bally-Prior collection of Schönenwerd, Switzerland. (Author: Andreas Gerstenberg)