Tennantite Subgroup (good sized crystals) with Chalcopyrite

Item Description

A very impressive display quality miniature of Tennantite (the specific species isn't known, so it's labeled as "Tennantite Subgroup") from the Dzhezkazgan District in Kazakhstan. A handful of excellent, sharp, well-formed, metallic silvery colored crystals measuring up to 2.5 cm across sit on sulfide matrix. The crystals have a beautiful partial coating of brilliant iridescent brassy Chalcopyrite, creating a fantastic effect, as they have an almost directional luster that sparkles in the light. Tennantite crystals that measure up to an inch are rare around the world, and the crystals on piece are fine quality to boot! A choice example of these now rare specimens that only came out for a brief time in the 1990s.
From the collection of Kurt Hefendehl (#428 Ru), a well-known German collector all over Europe with worldwide contacts to dealers and collectors. He started collecting seriously at the age of 14 and his great and varied worldwide collection reached over 6000 pieces. He was very active mineralogically until shortly before his passing in 2020 at the age of 82. Considering his collection had a large number of pieces, it still had an unusually high standard of quality from most worldwide localities. He particularly specialized in all classics as well as minerals of the Black Forest, where he spent much time collecting. His Black Forest and German subcollections went to his good friend Wolfgang Wendel. We at The Arkenstone have the privilege of offering the remainder of this great worldwide collection through our various platforms.