A very showing piece of long-axes quartz crystal overgrought by isometric calcite rhombohedron crystal and lately covered by small grains quartz and followed by flat lustrous yellow calcite rhombohedron crystals
One very old cabinet size specimen of quartz, covered with steep scalenohedron calcite crystals, build in the alternation of several generations of calcite and quartz very thin ( less than a millimeter) layers. Later on, these scalenohedron crystals were coated by limonite. At the end of crystallization process appear white, flat rhombohedron calcite crystals.
A very exciting specimen of bright and lustrous galena crystal, with mosaic development and skeletal structure, followed by quartz and calcite crystals
A very attractive specimen of steep calcite scalenohedrons followed by thin quartz layers and covered with several portions of later generation of calcite. The crystals were broken by tectonic moves and later rehealed by transparent calcite.
A very showing cabinet size specimen of thin epidote crystals developed on quartz. In the late stage of crystallization process, where developed several pink managnocalcite crystals with a nice morphology and lustrous faces.
An excellent cabinet size specimen of small shiny crystals of galena, very bright black tetrahedron sphalerite – marmatite, quartz and thin pseudo-hexagonal flat calcite crystals with priority developed basal pinacoid.
A very nice thumbnail of galena crystal particularly dissolved, showing „waves“ of dissolution and clear wholes of destroyed two-phase inclusions.
An extraordinary cabinet size specimen of large quartz crystals covered with very well terminated bundles of stilbite crystals lately replaced by calcite and covered with quartz aggregates
An excellent cabinet size specimen of quartz after calcite pseudomorph with chalcopyrite. Thin calcite, steep scalenohedron crystals, were covered by quartz and at the end, of one side of the crystals was developed small chalcopyrite crystals.
An excellent and very aesthetic specimen of large quartz crystal overgrowth by steep calcite scalenohedron, followed by the second generation of small and very shiny quartz crystals with presented just pyramidal faces. At the end of mineralization process were developed just on one side of the specimen small siderite crystals.