(Région de l'Ospenkopf et du Col de Wolfsgrube, Lautenbach, Vallée de la Lauch, Haut-Rhin, Alsace, France)
Outcrops of baryte veins and of pegmatites, hosted by granites. The occurrence of amethyst was confirmed by one single find.
Located north of Lautenbach.
Ref.:
- J.-L. Hohl: "Minéraux et Mines du Massif Vosgien", Editions du Rhin (Mulhouse), 1994