Overcoming the problems of high-resolution transmission electron microscopy of biogenic aragonite
- 1 December 1990
- journal article
- Published by Mineralogical Society in Mineralogical Magazine
- Vol. 54 (377) , 589-592
- https://doi.org/10.1180/minmag.1990.054.377.09
Abstract
High-resolution transmission electron microscopy of biogenic carbonate minerals is hampered by a lack of stability during exposure to the electron beam. However, aragonite in bivalve shells may be successfully imaged using a modification of the ‘minimal-exposure technique’ of Williams and Fisher (1970). Diffraction patterns taken before and after beam exposure indicate that the aragonite remained stable during imaging. The procedure described here should prove useful for further studies of the ultrastructure and/or the diagenesis of biogenic carbonate minerals.Keywords
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