One excellent miniature specimen of clear quartz crystals overgrowth by several twined and very well terminated chalcopyrite crystals, followed by black and very lustrous sphalerite – marmatite tetrahedral crystals, covered by round yellow-orange dolomite
One wonderful cabinet size specimen of chalcopyrite overgrowth by large cubic galena crystals.
An excellent, large cabinet size specimen of quartz overgrowth by sphalerite, galena and followed by very well shaped chalcopyrite. Galena is strongly dissolved in the latest stages of the mineralization process.
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.
One excellent cabinet size specimen shows clearly the genesis of secondary copper minerals, formed after erosion of chalcopyrite filled cracks in the mother rock.
A gorgeous and very aesthetic cabinet size specimen of chalcopyrite, sphalerite, and galena, covered by rhodochrosite and small clear quartz crystals, followed by double-terminated translucent stilbite crystals. The specimen has a cut base.
One stunning cabinet size specimen of sphalerite – marmatite and chalcopyrite, covered by spherulites of rhodochrosite, lately strongly dissolved