Title | Chalcopyrite with marcasite from Ugo, Japan |
Description | This 6 cm wide sample is mostly tarnished chalcopyrite, CuFeS2 (copper iron sulfide). The tarnishing gives it a blue-green irredescent look in some places. Small crystals of dark gray-black marcasite, FeS2, are also present. Chalcopyrite is an important copper ore mineral. |
Location | Japan. Near Ugo. |
Photographer | Darla Sondrol. 2001-07-09. |
Collection | University of North Dakota Mineralogy Collection #112. |
Key words | chalcopyrite, marcasite, pyrite, Japan |
Tech details | 1018 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
GeoDIL number | 1052 |
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