An excellent cabinet size specimen of small galena and sphalerite crystals, overgrowth by very lustrous pyrite crystals lately, in the process of oxidation, coated by bornite and covellite.
Тип минерал: covelite
Rainbow pyrite, galena, sphalerite – marmatite, quartz
One amazing and very aesthetic cabinet size specimen of large pyrite cubs overgrowth by tetrahedral small sphalerite-marmatite crystals, followed by galena crystals, lately strongly dissolved to an amorph shape. Pyrite crystals were also under oxidation and are coated by bornite-covellite, which shows a beautiful rainbow effect.
Chalcopyrite, Galena, sphalwrite-marmatite, quartz and rhodochrosite
One unique specimen of galena, overgrowth by large bright chalcopyrite crystals with very aesthetic striation on the crystal faces and followed by quartz and black sphalerite – marmatite. In the end of the crystallization process crystalized several beautiful hallow rhodochrosite crystals, following the shape of dissolved calcite crystals.
Chalcopyrite, pyrite, bornite, covelite
An outstanding and extremely rare specimen of pseudomorph of pyrite after sphalerite and chalcopyrite, on quartz.. Giudurska mine, Erma reka, Zlatograd area, Bulgaria
Chalcopyrite, quartz, galena, sphalerite, bornite and covelite
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.