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A Geoscience Digital Image Library

1189.jpg
TitleGlaucodot with pyrite and quartz
DescriptionGlaucodot, (Co,Fe)AsS, is a rare gray to silvery white (when fresh and untarnished) metallic copper, iron and arsenic sulfide found in hydrothermal deposits. When tarnished it may become darker colored. It is difficult to distinguish from other silvery metallic minerals. In this photo, the large crystals in the pocket are glaucodot. Most of the rest of the specimen is pyrite (and minor quartz). This specimen is 6 cm across.
LocationCanada ▹ Ontario. Near Cobalt.
PhotographerDarla Sondrol. 2001-07-16.
CollectionUniversity of North Dakota Mineralogy Collection #226.
Key wordsglaucodot, pyrite, quartz, Ontario, Canada
Tech details614 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens.
GeoDIL number1189