Chalcopyrite: A copper iron sulfide mineral (CuFeS 2) that is the most important copper ore. Lixiviant: A solvent used to extract metals from ores through leaching. Leaching: The process of ...

Research has shown that adding polar organic solvents, such as acetic acid and ethanol, can significantly improve copper leaching recovery from chalcopyrite ores. In one study, the addition of 2 M ...

Iron rich minerals (pyrrhotite and pyrite) are dominant with lesser concentrations of copper (chalcopyrite), zinc (sphalerite ...

Typical porphyry features observed include strong sericite-pyrite alteration, D-type veinlets, quartz and quartz-magnetite ...

CNW/ - Golden Arrow Resources Corporation (TSXV: GRG) (FSE: G6A) (OTCQB: GARWF), ("Golden Arrow" or the "Company") ...