Langite : Cu4(SO4)(OH)6·2H2O
As recorded:
Sankt Johann mine, Sankt Johann vein, Neuenberg, Sainte-Marie-aux-Mines, Colmar-Ribeauvillé, Haut-Rhin, Grand Est, France
Photo added to mindat.org
“Very nice twinned langite crystals on so few matrix.
This specimen is comming from Tellure gallery (the SMAM mining park, where visiting is possible), near St-Jean column during preparation for the tourism.”
Thierry Brunsperger - 1st January 2018
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