A Geoscience Digital Image Library

TitlePlatiniferous covellite with pyrite
DescriptionThis sample, 8 cm across, contains platinum-bearing covellite, CuS (copper sulfide) on the left side and a mix of quartz and pyrite on the right side. Covellite can be bright metallic indigo blue-violet colored when fresh, but tarnishes to become darker and often reddish or brown as seen here.
LocationUSA ▹ Wyoming. Near Laramie.
PhotographerDarla Sondrol. 2001-07-10.
CollectionUniversity of North Dakota Mineralogy Collection #209.
Key wordscovellite, pyrite, Wyoming
Tech details683 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens.
GeoDIL number1112