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.
No takes yet. Share an insight, caveat, or question.
Lowenstam et al. (1985) studied this question.
Synapse has enriched 4 closely related papers on similar clinical questions. Consider them for comparative context: