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Similarity of Octacalcium Phosphate and Hydroxyapatite Structures

Abstract

THE formation of lamellar mixed crystals of hydroxy-apatite and Octacalcium phosphate have been postulated by Brown et al.1 to account for ‘defect apatites’ and other properties of precipitated calcium phosphate salts. One of the mechanisms they suggested for the layering is that of epitaxial overgrowths, since some similarity of structure was recognized. The similarity which Brown2 demonstrated, however, is not nearly so striking as the similarity that can be shown.

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References

  1. Brown, W. E., Smith, J. P., Lehr, J. R., and Frazier, A. W., Nature, 196, 1050 (1962).

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  2. Brown, W. E., Nature, 196, 1048 (1962).

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  3. Posner, A. S., Perloff, A., and Diorio, A. F., Acta Crystall., 11, 308 (1958).

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TAVES, D. Similarity of Octacalcium Phosphate and Hydroxyapatite Structures. Nature 200, 1312–1313 (1963). https://doi.org/10.1038/2001312a0

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