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Vaterite: a mineralization product of the hard tissues of a marine organism (Ascidiacea)

Lowenstam, Heinz A. and Abbott, Donald P. (1975) Vaterite: a mineralization product of the hard tissues of a marine organism (Ascidiacea). Science, 188 (4186). pp. 363-365. ISSN 0036-8075.

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X-ray diffraction and infrared absorption spectra show that the spicules of the common tropical ascidian, Herdmania momus, are mineralized with vaterite. These are the first strictly marine organisms known to normally precipitate vaterite. The biomineralization of vaterite may constitute another link between the urochordates and vertebrates. The vaterite of ascidian spicules immersed in natural seawater remains mineralogically unchanged for 1 year, which indicates that vaterite may be preserved transiently in marine sediments.

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Additional Information:© 1975 American Association for the Advancement of Science. 14 November 1974; revised 7 February 1975. Contribution No. 2544 from the Division of Geological and Planetary Sciences, California Institute of Technology. We thank L. S. Land for the reference vaterite, G. R. Rossman for helpful comments on the manuscript, P. K. Mather and E. C. Pope for the Australian and Tasmanian H. momus samples, and J. E. Fitch for the fish otoliths. K. M. Towe and J. E. Fitch called our attention to some pertinent literature references. M. Dekkers skillfully prepared the samples. A. A. Chodos performed the electron microprobe analyses, B. Bingham the x-ray diffraction analyses, and S. Weiner the infrared absorption spectra. K. Evans and S. Weiner obtained the scanning electron micrographs. Supported by NSF grant GA 36824X1.
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NSFGA 36824X1
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Caltech Division of Geological and Planetary Sciences2544
Issue or Number:4186
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Official Citation:Vaterite: a mineralization product of the hard tissues of a marine organism (Ascidiacea) HA Lowenstam and DP Abbott Science 25 April 1975: 188 (4186), 363-365. [DOI:10.1126/science.1118730]
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:62133
Deposited By: Ruth Sustaita
Deposited On:16 Nov 2015 23:32
Last Modified:03 Oct 2019 09:15

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