The optical and infrared absorption of V3+ in beryl (Be3Al2Si6O18)

Abstract

The absorption spectra of Be3Al2Si6O18 [V3+] have been measured over the wavelength range 350 to 2600 nm. The observed transitions have been fitted by the crystal field parameters Δ = 16600, B = 590, C = 2950, v = m 1780, and v′ = 340, and the theoretical energy levels have been calculated on this basis. An unexplained complex of lines in the region 16500 to 18400 cm−1 may be due to interactions between V3+ and Fe ions.