Bach Mine underground view of the fluorite vein, in 1985.
Bach Mine, Bach an der Donau, Regensburg district, Upper Palatinate, Bavaria, Germany
Vein breccia with large fragments of greenish to purplish fluorite cemented by baryte and quartz. Vintage photo, photographer Helmut Wolf, Regensburg. Width of image ca. 50 cm.
© Helmut Wolf, Regensburg.