Gold Chalcopyrite CuFeS2::Au - 02.CB.10a (Strunz)(from El Inglés Mine, Chancón, Rancagua, Chile) T
Gold Chalcopyrite CuFeS2::Au - 02.CB.10a (Strunz)(from El Inglés Mine, Chancón, Rancagua, Chile) This Chalcopyrite is special because it contains within about 150 ppm Gold (parts per million), I mean a high concentration of this precious metal. Has a brass and gold yellow color. From Chancón near from my native town. I took a photo at the entrance to the “El Inglés mine”, to see as it was. -- source link
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