Anorthite and gehlenite crystalline structure and short-range order of anorthite melt have been studied by X-ray diffractionin the temperature range from room temperature up to ~ 1923 K. The corresponding anorthite and gehlenite phases wereidentified as well as amorphous component for anorthite samples having identical shape to XRD pattern of the anorthitemelt. The structure factor and the radial distribution function of atoms of the anorthite melt were calculated from the X-rayhigh-temperature experimental data. The partial structural parameters of the short-range order of the melt werereconstructed using Reverse Monte Carlo simulations.
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