One amazing very aesthetic cabinet size specimen of galena and sphalerite, overgrowth by thin, clear quartz crystals with extremely lustrous crystal faces, building a very well space developed net.
One excellent cabinet size specimen of slightly dissolved galena overgrowth by cluster to black sphlaerite- marmatite crystals penetrating each other and forming „sphalerite star“. Crystal faces of sphalerite are very lustrous, and the whole specimen has very aesthetic outskirts
One excellent miniature of space developed net of thin transparent and very lustrous quartz crystals, developed on the top of sphalerite – marmatite very lustrous crystals and pyrite.
A very interesting specimen, of black sphalerite – marmatite and chalcopyrite, overgrowth by large galena cubic crystals, followed by flat rhombohedral calcite crystals. In the late stage of crystallization, galena was strongly dissolved and some of the crystals are particularly destroyed. Could be seen typical „fingerprint“ dissolution, but the surfaces stay mirror lustrous. Probably the same process was the reason for appearance of „rainbow chalcopyrite surfaces“ – the result of the coating by bornite and covellite.
size 110 x 65 x 50 mm – weight 311,7 grams
One excellent specimen, presenting the classical shape of sphalerite crystals with a tetrahedral habit. Galena is developed on mother rock and later is strongly dissolved, forming “ dissolution fingerprints on the surface of the crystals. Galena is followed by transparent quartz – rock crystal, and at the end of the crystallization process were formed sphalerite tetrahedral crystals with several very nice and showed twins
One outstanding, very aesthetic, large cabinet size specimen, presenting, skeletal galena crystals, singenetically developed with perfect black sphalerite – marmatite crystals with very lustrous crystal faces. and shiny small pyrite crystals. All these crystals are overgrowth by long axes, thin transparent, quartz crystals forming a space net and in the empty spaces are developed small and very shiny pyrite crystals – all that reminds a very aesthetic Christmas tree.
One just exceptional and very aesthetic large cabinet size specimen of sphalerite crystals with tetrahedral habit and extremely lustrous crystal faces.
One very aesthetic specimen o transparent quartz crystals, overgrowth slightly dissolved galena, sphalerite, and chalcopyrite
One very aesthetic cabinet size specimen of quartz overgrowth by sphalerite, chalcopyrite and second-generation thin quartz crystals. Part of chalcopyrite crystals are coated by bornite and covellite.
An amazing miniature specimen of lagre, chalcopyrite crystals, internaly corroded and replaced by galena, sphalerite and pyrite. Chakcpyrite is strongly oxidized and surface in some parts is coated by bornite.