An excellent specimen of galena cubic crystals, overwrought by chalcopyrite and followed by sphalerite and quartz
An excellent thumbnail,of very well terminated long axes quartz crystals, overgrouth galena and covered by small isometric dolomite crystals .
One very aesthetic tumbnail size specimen of small and very well shaped almandin crystals overgrowth white albite crystals
An unique specimen of very aesthetic splited up calcite crystals forming feather like delicate crystals developed on the base of galena and pyrite, covered by skalenohedron calcite crystals
One of the last pieces of Bulgarian famous cavity of transparent sphalerite – cleophane with intensive green-emerald color. The piece is completely transparent, but in its down part, there is a shadow, following the zoning of crystal development of around 10 % of the volume. The picture is taken in transmitted (back) led light.
One excellent cabinet size specimen of very well developed Spinel law twins in Galena, on the top of sphalerite(marmatite) and quartz and pyrite, covered by green color chlorite
One excellent cabinet size specimen of parallel developed dark amethyst crystals covered by well terminated lustrous pyrite crystals.
A nice tumbnail specimen of transparent quartz – rock crystal with isolzted crystals of skeletal developed galena, sphalerite an pyrite
One very nice , cabinet size specimen of well terminated cubic pyrite crystals, covered by quartz strongly oxidated to bornite in some parts of the specimen.
One exceptionally aesthetic, large cabinet size specimen, of well developed quartz crystals secondary coated by limonite.