On variety of the Ca coordination in the incommensurate structure of synthetic iron-bearing akermanite, Ca2(Mg0.55,Fe0.45)Si2O7.
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چکیده
منابع مشابه
On variety of the Ca coordination in the incommensurate structure of synthetic iron - bearing akermanite , Ca 2 ( Mgo . ss , Feo . 4 s ) Si 207
The incommensurate modulation in a synthetic iron-bearing akermanite, Ca2(Mg, Fe )Si207, has been determined at room tempe~ature by the five-dimensional refinements of the structure. The basic structure is tetragonal P4 21m with unit-cell dimensions a =7.8679(3), c ~5.0144(2)A, V=31OAl(2)A3, 2=2, M=286.69, Dx =3.067Mg . m-3, MoKa with graphite monochromator, J1 =3.199mm-l, F(000)=284A9, Mg/(Mg+...
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ژورنال
عنوان ژورنال: Mineralogical Journal
سال: 1998
ISSN: 1881-4174,0544-2540
DOI: 10.2465/minerj.20.47