A Geoscience Digital Image Library

TitleDigenite with pyrite from Butte, Montana
DescriptionThe irredescent blue mineral is digenite, Cu9S5 (copper sulfide). It is an important ore of copper. Digenite, which does not generally form good crystals, can be confused with other copper sulfides. Lesser amounts of golden pyrite (iron sulfide) can also be seen in this sample wh ich is 9 cm across.
LocationUSA ▹ Montana. Near Butte.
PhotographerDarla Sondrol. 2001-07-11.
CollectionUniversity of North Dakota Mineralogy Collection #106.
Key wordsdigenite, pyrite, Montana
Tech details1.21 MB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens.
GeoDIL number1150