1987 Volume 37 Issue 206 Pages 373-380
Chalcopyrite blebs and lamellae intergrown with sphalerite, which are similar to those in natural ores, were experimentally formed at the condition of the temperature =400°C and the PH2O=400 kgf/cm2 by reacting Fe-rich sphalerite with Cu-bearing aqueous solutions. This fact verifies a hypothesis that chalcopyrite inclusions in Fe-bearing sphalerite are replacement product. Analytical results by electron microprobe analyses for the reacted sphalerite intergrown with chalcopyrite have proved that replacement mechanisms are not so simple and that copper substitutes not only zinc but also iron in sphalerite at an advanced stage of replacement.
