High resolution images have been recorded for a variety of silicate minerals, including the pyroxenoids (wollastonite and rhodonite), amphiboles, serpentines and several layered minerals. Structural images displaying resolution of interatomic distances of 2. 7 A and upwards have led to: (i) the discovery of new topologies such as multiple chain structures that coexist within an amphibole matrix (as in nephrite jade); (ii) a correlation betwen local compositions and polytypic variants in certain sheet silicates, and to the elucidation of problems associated with nonrandom disorder and the discovery of new polytypes in others; and (iii) elucidation of the atomic structure of various kinds of structural imperfections.
|Original language||English (US)|
|Number of pages||13|
|State||Published - Jan 1 1979|
|Event||Spec Issue, Nobel Symp 47, Direct Imaging of At in Cryst and Mol - Lidingo, Swed|
Duration: Aug 6 1979 → Aug 10 1979
ASJC Scopus subject areas