A very rich and well formed Silver sulphide specimen with a mass of Stephanite crystals, many showing the six sided habit that looks a lot like Polybasite. Fine luster and a nice contrast with the slender Quartz prisms some of which are doubly terminated. The Stephanites are in remarkable condition for such an obviously old specimen of this delicate mineral. Especially impressive under magnification. The St Andreasburg mines are some of the greatest historical Silver mines in the world. The Harz mountains were already being worked in the middle ages, even in the 10th century, while St Andreasburg began in the 1600 era and became a major site, with very deep workings. Between 1910 and 1930 most all the mines were finished, we have sonly such specimens to reflect on this era.
A choice old Harz Mountains pink Apophyllite ex Erastus Corning (1794-1872) and Cornell University collections. Corning specimens are quite rare in themselves, he was an important politician, industrialist and the city of Corning is named for him. His interests were broad and included a small but fine mineral collection. Likely a pre 1865 specimen, very glassy with fine color and in remarkably fine condition despite the age of this piece. Fine old pink Apophyllites from St. Andreasburg are one of the most desirable 19th Century classic from western Europe. Excellent value for the size quality and provenance