A Geoscience Digital Image Library

TitleBismuthinite from Tasna, Bolivia
DescriptionThe gray semimetallic material is bismuthinite, the gold material is chalcopyrite. Bismuthinite (bismuth sulfide, Bi2S3) is an important ore of bismuth. The specimens shown, which are up to 2 cm across, look similar to stibnite (antimony sulfide, Sb2S3). It is difficult to distinguish the two minerals. However, bismuthinite is heavier than stibnite and well formed crystals of bismuthinite have straighter, flatter faces.
LocationBolivia. Near Tasna.
PhotographerDarla Sondrol. 2001-07-10.
CollectionUniversity of North Dakota Mineralogy Collection #81.
Key wordsbismuthinite, Bolivia
Tech details491 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens.
GeoDIL number1105