Calcium carbonate films and helices grown in solutions of poly(aspartate)
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Lowenstam, 1989
1989
S.E. Rudnick, PhD Thesis, Boston University, 1979.
R. Brooks, L.M. Clark, E.F. Thurston, Philos. Trans. R. Soc. London Ser. A 243.
R.E. Stoiber, S.A. Morse, Crystal Identification with the Polarizing Microscope, Chapman and Hall, New York, 1994, p. 200; and personal communications with S.A. Morse. Conoscopy of the film patches yields single-crystal interference figures, which in some cases appear biaxial (the isogyres have borders of red and blue due to dispersion, and the hyperbolic legs separate, but remain in the field of view as the stage is rotated), but it is possible that these are pseudo-biaxial figures produced by strain in the thin film structures. This is suggested because the optic angle was not very well defined, and seemed to vary among samples.
L. Gower, D.A. Tirrell, poster presented at the 7th Int. Symp. on Biomineralization, Monoco, November 1993. At that time, we reported preliminary observations of “helical calcite crystals”. As this report describes, we have since determined that these are spherulitic vaterite particles.
Mutvei, 1972, Biomineralisation – Research Reports, 6, 96
Wada, 1972, Biomineralisation – Research Reports, 6, 141