3.7" Cubic Pyrite With Chalcopyrite & Quartz - Peru

This is a beautiful association of chalcopyrite, cubic pyrite and quartz crystals. It comes from the Huanzala Mine in Peru and the entire specimen measures 3.7" wide.

Pyrite or iron pyrite is commonly referred to as Fool's Gold because it's 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 which is one of the most important ores of copper. When weathered chalcopyrite loses it's metallic luster, turning a gray-green color. When acids are present the tarnish can develop a red to blue to purple iridescence.

Chalcopyrite, Pyrite & Quartz
Huanzala Mine, Bolognesi, Peru
3.7 x 1.9"