Figure 5
Comparison of the derived variation of structural parameters with the average cationic radius of the M1 and M2 sites for the Ge olivines of this study: (a) average M—O bond length, (b) bond-length distortion (Renner & Lehmann, 1986) and (c) octahedral quadratic elongation (Robinson et al., 1971); symbols as in Fig. 2. |