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Octahedrally-coordinated Cr 3+ possesses peculiar spectral features which made easy to identify it in minerals, even in minor amounts. Chromium has been studied in uvarovite and fuchsite by optical and EPR spectra. Optical, EPR, FT-infrared and EPMA studies have also let to determine the presence of Fe 3+ and Ti 3+ and fluid inclusions within uvarovite and fuchsite...
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