Altenberg, Sachsische Schweiz-Osterzgebirge District, Saxony, Germany
13.3 x 8.4 x 5 cm.
A nice cabinet-size plate of small cubic purple fluorite crystals from Altenberg, Saxony Germany. Good representative old-time specimen from this classic locale. From the collection of prominent 19th Century Pennsylvania collector and businessman William W. Jefferis, with a handwritten label in good condition.