The effect of Co substitution and sample preparation on the Raman spectra of pyrite

Khulan Berkh & Dieter Rammlmair
Effect of Co substitution in pyrite was investigated using a Raman microprobe. Textural appearance of Co-bearing pyrite was visualized by mapping method. The revealed Raman map tightly correlates with a Co distribution map obtained by electron microprobe and µ-energy-dispersive X-ray fluorescence microscope. In addition, a strong influence on the pyrite spectra due to sample preparation was documented. The standard mechanical polishing caused highly broadened modes at upshifted frequencies, which could be avoided by analyzing of...
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