Fluorite - Rufibachkluft, Vorderer Zinggenstock, Grimsel, Bernese Oberland, Switzerland
 
 Fluorite on matrix from the well-known Rufibach cleft at the Vorderen Zinggenstock. The etched areas with the sharp-edged tips and the partly dark purple edges from this find from the 1970s are characteristic. The cleft also produced excellent specimens of smoky quartz with fluorite. The find is certainly one of the best and most famous from the Swiss Alps.