A Geoscience Digital Image Library

TitleChalcopyrite and galena
DescriptionHere we see blocky galena (PbS) with tarnished gold chalcopyrite (CuFeS2). Although not visible on this surface, this specimen also contains sphalerite (ZnS). The association galena-chalcopyrite-sphalerite is common in many ore deposits. The name galena derives from the Greek name galene meaning “lead ore” - galena is the number one lead ore mineral. Chalcopyrite is the most common and important copper ore mineral, and is the most common sulfide in porphyry copper deposits. Galena is a cubic mineral and poorly formed cubes can be seen in this specimen. Some specimens of galena have a bright metallic luster, but this one does not. This sample is 9 cm across.
PhotographerDarla Sondrol. 2001-06-27.
CollectionUniversity of North Dakota Mineralogy Collection #f32.
Key wordschalcopyrite, galena
Tech details787 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens.
GeoDIL number915