Green quartz – prase, galena, sphalerite, marmatite,

A very aesthetic cabinet size specimen of cubic galena overgrowth by green quartz – prase ( colored by chlorite) and followed by a very lustrous group of black sphalerite – marmatite crystals with several clear twins. In the later stages of crystallization, galena was strongly dissolved,  and  quartz are standing in a  very attractive space net of crystals.
 90 x 70 x 55 mm

Manganocalcite, rhodochrosite, galena, sphalerite, chalcopyrite, quartz

One very rare specimen of manganocalcite crystals, developed on the base of black sphalerite – marmatite and followed by chalcopyrite crystals. At the end of the crystallization process on the surface of the specimen start crystalization of very light, pink rhodochrosite, curved crystals overgrowth by clear small quartz crystals.