geodil.jpg

A Geoscience Digital Image Library

1114.jpg
TitleBismuthinite and pyrite from Tasno, Bolivia
DescriptionThis sample (8 cm across) contains both bismuthinite and pyrite. The golden colored pyrite is easy to see, but the gray bismuthinite is tougher to pick out. Pyrite, FeS2 (iron sulfide), is the classic “Fool's Gold”. There are other shiny brassy yellow minerals, but pyrite is the most common. Bismuthinite, Bi2S3 (bismuth sulfide), is a relatively nondescript (and uncommon) steel gray mineral, but is an important ore of bismuth.
LocationBolivia. Near Tasna.
PhotographerDarla Sondrol. 2001-07-10.
CollectionUniversity of North Dakota Mineralogy Collection #121.
Key wordsbismuthinite, pyrite, Bolivia
Tech details937 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens.
GeoDIL number1114