Calcified Tissue International

, Volume 28, Issue 1, pp 215–225 | Cite as

Composition of apatites in human urinary calculi

  • P. F. González-Díaz
  • J. V. García-Ramos
  • M. Santos
Clinical Investigations


Calcium-deficient carbonate apatites in urinary calculi from 17 patients have been studied. Magnesium ions in each case were detected as a component of apatite. In most of the cases, CO 3 2− ions were included in the apatitic lattice. Using a calcination procedure, we have determined the most probable average value for the CO 3 2− content, degree of deficiency, x, and the Mg/Ca ratio in each sample.

Key words

Apatite Carbonate Magnesium Deficiency Whitlockite 


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Copyright information

© Springer-Verlag 1979

Authors and Affiliations

  • P. F. González-Díaz
    • 1
  • J. V. García-Ramos
    • 1
  • M. Santos
    • 1
  1. 1.Instituto de Optica “Daza de Valdés” C.S.I.C.Madrid-6Spain

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