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Figure 5
Variation of the M1—O1—M1 bond angle of NaM3+(Si,Ge)2O6 pyroxenes with ionic radius M1. Filled squares and triangles represent data for elements with spherical and nonspherical electron configurations, respectively, for the Na–germanate pyroxenes, and filled and open circles represent data for the Na–silicate pyroxenes. References to the literature are as in Fig. 3[link].

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CHEMISTRY
ISSN: 2053-2296
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