2" Galena, Chalcopyrite and Pyrite Association - Peru

This beautiful specimen contains an association of pyrite, galena and sphalerite crystals. It comes from the Huanzala Mine in Peru and the entire piece measures 2" wide. The pyrite is only located at the point of extraction, on what could be considered the underside of the specimen.

Galena is a lead-based mineral and the primary ore of lead, and has been used for its lead content for thousands of years. Galena typically displays a gray metallic luster and forms cubes or octahedral crystals. The chemical composition of galena is PbS.

While galena will not pose a health hazard by sitting on the shelf or even from casual handling, we suggest washing hands following handling due to the mineral's lead content.

Pyrite (or iron pyrite) is commonly referred to as Fool's Gold because its metallic luster and pale brass-yellow hue give it a superficial resemblance to gold. In the old mining days, Pyrite was sometimes mistaken for gold. Pyrite is the most common of the sulfide minerals with the chemical formula FeS2. Pyrite crystals occur in many shapes and habits. Smaller (druzy) crystal aggregates may give off beautiful glistening effects, and larger crystals may be perfectly formed, including fascinating cubes, penetration twins, and other interesting crystal forms.

Chalcopyrite is a brass-yellow colored mineral and an important copper ore. When weathered, chalcopyrite loses its metallic luster, turning a gray-green color. When exposed to acids, the tarnish can develop a red, blue, or purple iridescence: this acid-treated material is often sold under the name peacock ore.
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DETAILS
SPECIES
Pyrite, Galena & Chalcopyrite
LOCATION
Huanzala Mine, Bolognesi, Peru
SIZE
2" wide
CATEGORY
ITEM
#102541