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A Geoscience Digital Image Library

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TitleArsenopyrite, pyrite and quartz from Gold Hills, Utah
DescriptionThis specimen (10 cm across) contains arsenopyrite (FeAsS), pyrite (FeS2) and quartz (SiO2). The pyrite is conspicuously gold and metallic, the aresenopyrite is drab gray, and the quartz is whitish. Pyrite is an ore mineral for iron, and arsenopyrite is a major ore of arsenic. Quartz, typically is gangue (meaning it is a valueless mineral found with ore minerals). Arsenopyrite sometimes indicates the presence of gold, and so when it is present it gets miners excited.
LocationUSA ▹ Utah. Near Gold Hills.
PhotographerDarla Sondrol. 2001-07-11.
CollectionUniversity of North Dakota Mineralogy Collection #3190.
Key wordsarsenopyrite, Utah
Tech details1.08 MB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens.
GeoDIL number1127