a hedenbergite-like arrangement and a C2/c clinoferrosilite-like arrangement that are centered by Ca and...coordination similar to that of Fe2+ at M2 in C2/c clinoferrosilite (6-coordinated). The Mössbauer spectroscopic...hedenbergite, and Fe2+ at the M1 and M2 sites in C2/c clinoferrosilite [9]. In natural (Ca, Fe, Mg)2Si2O6 clinopyroxenes...University, Engelhardt Astronomical Observatory, Russia, Kazan, Kremlyovskaya st., 18. E-mail: Alexey-andreev93@mail...University, Engelhardt Astronomical Observatory, Russia, Kazan, Kremlyovskaya st., 18. E-mail: Alexey-andreev93@mail |