Paramagnetic Resonance Spectrum of Fe3+ in Calcite

Abstract

The paramagnetic spectrum of an impurity in natural crystals of calcite has been examined and identified as that of Fe3+. The value of g is assumed to be two. Approximate values for | D | and | a—F | are 2.9 and 0.44 Gc, respectively. The value of the cubic field splitting parameter a was not determined.