One excellent and rare specimen of a cluster of amethyst crystals covered by very lustrous pyrite crystals
A rare and very aesthetic cabinet-size specimen of large colorless barite crystals overgrowth by very lustrous pyrite crystals
One excellent cabinet-size specimen, of intensive colored amethyst crystals, overgrowth by small and very lustrous pyrite crystals.
One exceptional and very aesthetic cabinet size specimen of small cubic and very lustrous galena and pyrite crystals, covered by very thin clear small quartz crystals, very interesting arranged in the space, forming the starts like groups of crystals.
A very aesthetic cabinet size specimen, of rhombic clear large barite crystals covered by small, but very lustrous pyrite crystals.
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.
One exceptional pseudomorph cabinet size specimen of standing mineral formations of quartz developed on anhydrite, lately dissolved and followed by sphalerite – marmatite, pyrite, and chalcopyrite.