KUSAKA Katsuhiro   OHMASA Masaaki   HAGIYA Kenji   IISHI Kazuaki   HAGA Nobuhiko   
Mineralogical journal 20(2) 47-58 1998年
The incommensurate modulation in a synthetic iron-bearing åkermanite, Ca2(Mg, Fe)Si2O7, has been determined at room temperature by the five-dimensional refinements of the structure. The basic structure is tetragona...