Chalcopyrite, sphalerite, galena and pyrite

Excelent and very interesting small specimen presenting almost full range of sulfides in deposit Madan. On the base of „melted“ galena are developed shiny sphalerite crystals, fallowed by very well developed chalcopyrite crystals with sculptured crystal faces. Clearly could be seen typical for Madan pseudomorph of pyrite after chalcopyrite.