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Transformation of Amorphous Calcium Phosphate to Crystalline Dahllite in the Radular Teeth of Chitons

Science4 Jan 1985Vol 227, Issue 4682pp. 51-53DOI: 10.1126/science.227.4682.51

Abstract

A comparison of infrared spectra from individual teeth along the radula of a chiton (Polyplacophora, Mollusca) shows that the first-formed calcium phosphate mineral is amorphous. Over a period of weeks the mineral transforms to dahllite. The c axes of the dahllite crystals are aligned approximately perpendicular to the tooth surface.

References

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Published In

Science
Volume 227 | Issue 4682
4 January 1985

Submission history

Received: 23 July 1984
Accepted: 23 August 1984
Published in print: 4 January 1985

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H. A. Lowenstam
Division of Geological and Planetary Sciences, California Institute of Technology,Pasadena 91125
S. Weiner
Weizmann Institute of Science, Isotope Department, 76100 Rehovot, Israel

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