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A Geoscience Digital Image Library

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TitleCobaltite and skutterudite with nickeline
DescriptionThis is a sample (8.5 cm across) of silver ore from a mine near Cobalt, Ontario. The nondescript gray material is a mix of cobaltite, (Co,Fe)AsS (cobalt iron arsenic sulfide) and skutterudite, CoAs2-3 (cobalt arsenide). The copper colored metallic material is nickeline, NiAs (nickel arsenide). These minerals are often mined for the cobalt and nickel they contain. What makes this particular ore valuable, however, is that the cobaltie and skutterudite also contain silver (Ag).
LocationCanada ▹ Ontario. Near Cobalt.
PhotographerNessa Eull. 2001-07-16.
CollectionUniversity of North Dakota Mineralogy Collection #192.
Key wordscobaltite, niccolite, Ontario, Canada
Tech details627 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens.
GeoDIL number1182