Limonite quartz and pyrite

#3024
One very aesthetic cabinet-size specimen of thin, very well-shaped clear quartz crystals, coated by limonite and overgrowth by very lustrous pyrite crystals.

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