A beautiful specimen presenting well-terminated galena cubic crystals, covered by chalcopyrite and sphalerite-marmatite with green quartz on the top.
A large cabinet size specimen, presenting almost full paragenesis of Madan with very complicated mineralization process. Pseudomorph of pyrite after chalcopyrite, on the top of small galena crystals, followed by quartz and small sphalerite (cleophane) crystals
An aesthetic cabinet sized specimen of large chalcopyrite crystals, singenetically developed with galena and sphalerite, followed by quartz. In the last stage of crystallization, oxidation creates a thin coating of bornite and covellite.
Very aesthetic specimen presenting well-terminated cubic galena crystals singenetically developed with chalcopyrite.
A specimen showing pseudomorph of pyrite after chalcopyrite. On the basement of galena was developed chalcopyrite crystal, lately dissolved and replaced by pyrite. On the other side of the specimen is developed spiral step mark of growing of galena crystal.
Beautiful „spacy“ specimen build in the net of quartz crystals with the small chalcopyrite crystals in the early stage of oxidation to bornite. On the opposite side of the specimen, there is one single chalcopyrite crystal encrusted with black sphalerite crystal and some pyrite crystals
A nice specimen of single galena skeletal crystal developed on the top of chalcopyrite small crystals
An excellent specimen showing almost full paragenesis of Madan. On the top of small syngeneticalli developed sphalerite and galena, were developed chalcopyrite large crystals secondary overgrought by large cubic well-shaped galena of the second generation
Well developed gALENA CRYSTALS OVERGROUGHT BY SMALL CHALCOPYRITE CRYSTALS
Extraordinary and very aesthetic specimen of quartz forming a net of single crystals with small chalcopyrite crystals lately oxidated to bornite and covellite