Chalcopyrite, sphalerite-marmatite, quartz and pyrite

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.

Chalcopyrite, sphalerite-matmatite, pyrite, galena, quartz and dolomite

#2653
One very attractive large cabinet size specimen of quartz, overgrowth by large chalcopyrite crystals in combination with sphalerite-marmatite and galena. In some parts, chalcopyrite is corroded by small pyrite crystals, which is common in this mine. In the last stages of crystallization dolomite, coated with limonite formed small round crystals of all previously crystallized minerals.
size 98 x 45 x 30 mm
„The 9th of September mine“, Madan, Bulgaria

Cluster of galena, sphalerite, pyrite, and thin needle quartz

One exceptional and very aesthetic cabinet size specimen of small cubic and very lustrous galena and pyrite crystals, covered by very thin clear small quartz crystals, very interesting arranged in the space, forming the starts like groups of crystals.

Quartz, chalcopyrite, sphalerite-marmatite and dolomite

One excellent miniature specimen of clear quartz crystals overgrowth  by several twined and very well terminated chalcopyrite crystals, followed by black and very lustrous sphalerite – marmatite tetrahedral crystals, covered by round yellow-orange dolomite

Quartz-rock crystal, sphalerite-marmatite and pyrite

A very aesthetic cabinet size specimen of transparent well-formed quartz crystals, overgrowth by black and very lustrous sphalerite-marmatite crystals overgrowth by very well terminated lustrous pyrite crystals