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The atomic structure of fluor-apatite and its relation to that of tooth and bone material. (With Plates XVI-XVIII.)

Published online by Cambridge University Press:  14 March 2018

C. A. Beevers  and
D. B. McIntyre
C. A. Beevers
Affiliation:
Dewar Crystallographic Laboratory, University of Edinburgh
D. B. McIntyre
Affiliation:
Dewar Crystallographic Laboratory, University of Edinburgh
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Extract

It is well established by X-ray crystal analysis that the mineral constituent of bone and of the enamel and dentine of teeth is essentially hydroxy-apatite Ca5OH(PO4)3, and that hydroxy-apatite has a structure differing only in small details from that of the well-crystallized mineral fluor-apatite Ca5F(PO4)3. The main difference, and in fact the only fully established one, between the two structures is that the hydroxy-apatite has a slightly larger unit cell than that of the fluor-apatite. The structure of the latter has been determined by Náray-Szabó, and by Mehmel who finally agrees with Náray-Szabó. We have made what is probably a more accurate determination of the structure, using more extensive X-ray data.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 27 , Issue 194 , September 1946 , pp. 254 - 257
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1946

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References

page 254 note 1 Náray-Szabó, S., Zeits. Krist., 1930, vol. 75, p. 387. [M.A. 4–462.]Google Scholar

page 254 note 2 Mehmel, M., Zeits. Krist., 1930, vol. 75, p. 323, and Zeits. Physikal. Chem., A, 1931, vol. 15, p. 223. [M.A. 4–462.]Google Scholar

page 256 note 1 Jensen, A. T., Kgl. Danske Vidensk. Selskab, Math.-fys. Medd., 1940, vol. 17, no. 9. [M.A. 9–226.]Google Scholar