One extraordinary specimen of single manganocalcite pink crystal, singenetically developed with small transparent rock crystal,green prazem quartz crystals, pyrite and sphalerite.
One excellent thumbnail specimen of space developed thin quartz crystals, forming a net of crystals covered in some points with small pyrite, chalcopyrite and sphalerite crystals
An excellent cabinet size specimen of rhodochrosite spherolites, developed on the top of thin clear quartz crystals. In the end were developed Large sphalerite-marmatite crystal and small chalcopyrite crystals.
An aesthetic tumbnail of needle aragonite covered by small calcite crystals on the matrix of black sphalerite – marmatite
An excellent cabinet size specimen of well shaped small crystals of galena, sphalerite and pyrite overgrowth by very lustrous rhombohedrons of golden color calcite with mosaic surface.
size 84 x 40 x 45 mm
One small, but very nice specimen build in black and opaque sphalerite- marmatite around big transparent quartz crystal. Sphalerite is with skeletal development, overgrowth by large well-terminated cubic galena crystals.
One very aesthetic specimen of galena with black, lustrous well shaped crystals of sphalerite-marmatite.
An excellent, large cabinet size specimen presenting almost full sulfide paragenesys of deposit Madan. Large crystals of chalcopyrite was dissolved and particularly replaced by pyrite, galena and black sphalerite- marmatite.
One very aesthetic large cabinet size specimen, presenting very lustrous sphalerite- marmatite tetrahedral crystals with nice face striation covered by galena, secondary strongly dissolved.
A very rare specimen presenting two kind of sphalerite – marmatite ( black and opaque) and cleophane (transparent with yellow – green color). These two varieties alternate in the specimens and even in the crystals there are zones of marmatite and cleophane with very strong border according planes of cleavage. Morphology of the crystals is tipical for marmatite. Sphalerite covers galena and quartz.