Amethyst with pyrite

One excellent tumbnail specimen of  dark – indigo color amethyst covered particularly by small and very lustrous pyrite crystals

Mirror lustrous galena with quartz

One excellent specimen of cubic developed galena covered by quartz. Galena crystals are with mirror like surface what makes this specimen very aesthetic.

Amethyst, pyrite

One excellent cabinet size specimen of parallel developed dark amethyst crystals covered by well terminated lustrous pyrite crystals.

Rainbow pyrite with quartz

One very nice , cabinet size specimen of well terminated cubic pyrite crystals, covered by quartz strongly oxidated to bornite in some parts of the specimen.

Quartz coated by limonite

One exceptionally aesthetic,  large cabinet size specimen, of well developed quartz crystals secondary coated by limonite.