Abstract
The superposition model has been used to compare all possible assignments of group theoretical labels appropriate to the near infrared spectral bands of Fe2+ in D2 sites in pyrope garnet. A unique assignment is determined for the optical absorption bands at 7800, 6100 and 4500 cm−1 to transitions from an A ground state to B2, A, and B3 excited states respectively, contrary to the previous assignments of White and Moore (1972) and Runciman and Sen-gupta (1974).
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