Chalcopyrite,copper iron sulfide,is one of the most widespread and important ores of copper. It occurs both as disseminated grains in a host rock,and also in vein-type deposits along with pyrite,galena,sphalerite and other sulfide minerals. Chalcopyrite has a golden yellow color,but the surface tarnishes rapidly upon exposure to air leaving a characteristic brightly colored iridescent film. The material from Butte,Montana shows off this property very well | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Arem, Joel |
Taille de l’image : | 3799 px × 2550 px |
Model Release : | Non requis |
Property Release : | Non requis |
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