20056 RC390 Fluorite, Göscheneralp, Göschenen Valley, Göschenen, Reuss Valley, Uri, Switzerland August 4, 2021 Steve Europe Switzerland Cluster of pink octahedral crystals, pale blue fluorescence. Ex Roger Colling Collection.
Illinois North and Central Americas United States 10001 Calcite, Fluorite, Hill-Ledford Mine, Cave-in-Rock, Hardin Co., Illinois, USA March 23, 2018