An alteration of stibnite in the oxidation zone with "antimony-ochers" and stibnite. Mg-dominant analogue of bottinoite
Approved IMA 1998 (Dana # Added)
Schmidten-Schacht and Jakobi-Schacht (pits) of the master lode in the former Brandholz-Groldkronach mining district in the western part of the Fichtelgebirge, Bavaria, Germany. Link to MinDat.org Location Data.