Synchrotron-Based HR-Fluorescence and Mineralogical Mapping of the Initial Growth Stages of Polynesian Cultivated Pearls Disprove the ‘Reversed Shell’ Concept
نویسندگان
چکیده
In a series of Polynesian pearls collected after short cultivation periods, early post-grafting mineral deposits were characterized by high resolution synchrotron-based X-ray fluorescence with unprecedented accuracy. Morphological patterns and elemental composition are correlated through simultaneous imaging processes. Evidence that aragonite calcite occur in neighboring units during the earliest biomineralization stages reveals grafting process can result greater degradation than usually admitted widely shared ‘reversed shell’ concept. Compared ultrastructure pristine nacreous tablets, this method enables precise evaluation possible biological changes mechanism grafting.
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ژورنال
عنوان ژورنال: Minerals
سال: 2022
ISSN: ['2075-163X']
DOI: https://doi.org/10.3390/min12020172