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Correlated Thermally Stimulated Depolarisation Currents (TSDC) and Electron Paramagnetic Resonance (EPR) studies were performed on natural samples of Brazilian amethyst. Four bands of dipole origin are identified in the TSDC spectra at 185, 200, 214 and 260K, respectively, where the three former originate a broad band centred at 215K. The X-band EPR spectrum, for the magnetic field aligned parallel...