One very interesting, strongly weathered, large cabinet-size specimen of black sphalerite-marmatite and quartz, covered by very well-developed chalcopyrite crystals, lately internally corroded and replaced by pyrite.
A perfect specimen of isometric transparent green sphalerite- cleophane crystals, developed on quartz.
Krushev dol mine, Madan, Rhodope mountains, Bulgaria
One beautiful miniature specimen of rhodochrosite, chalcopyrite, and sphalerite.
Sturnitsa mine, Davidkovo area, Smolian region, Bulgaria
Hot from the mine! One very aesthetic specimen of sphalerite, chalcopyrite, and pyrite overgrowth by exceptionally long quartz needles.
One perfect, cabinet-size specimen, of skeletal developed galena, overgrowth by sphalerite-marmatite, chalcopyrite, quartz, and pyrite. Galena has rounded crystals, due to desolvation.
One perfect miniature specimen of very well-shaped rhodochrosite spherulites, developed on quartz, sphalerite-marmatite, and pyrite
One exceptional cabinet size specimen of very well terminated isometric green transparent sphalerite – cleophane crystals, developed on white quartz
A very aesthetic cabinet-size specimen of very lustrous black sphalerite marmatite crystals, overgrowth by clear rock crystal.