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Acta Cryst. (2004). E60, i50-i51 [ doi:10.1107/S1600536804005069 ]
Abstract: Potassium calcium fluoride carbonate, KCaF(CO3), has been synthesized and its structure solved from X-ray powder diffraction data. The K, Ca, F and C atoms lie at sites with 
imposed symmetry and the unique O atom has imposed mm site symmetry. The compound consists of Ca-F-Ca chains parallel to the c axis and planar CO3 groups perpendicular to the c axis, the corners of the hexagonal cell being occupied by K+ ions. The compound is not a solid solution, since the structure differs from those of both KF and CaCO3.
Online 6 March 2004
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