Title | Nickeline (niccolite) and dyscrasite from Cobalt, Ontario, Canada |
Description | Most of the gray material in this sample is dyscrasite, Ag3Sb (silver antimonide). Dyscrasite may be metallic and silver colored when fresh, but it rapidly tarnishes when exposed to air. The copper colored mineral is nickeline, NiAs (nickel arsenide). These are important ore minerals for nickel (Ni), silver (Ag) and antimony (Sb). This sample comes from a mine at Cobalt, Ontario, and is 8 cm across. |
Location | Canada ▹ Ontario. Near Cobalt. |
Photographer | Darla Sondrol. 2001-07-10. |
Collection | University of North Dakota Mineralogy Collection #157. |
Key words | niccolite, nickeline, dyscrasite, Ontario, Canada |
Tech details | 797 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
GeoDIL number | 1107 |
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