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Science 16 December 1960:
Vol. 132. no. 3442, pp. 1837 - 1838
DOI: 10.1126/science.132.3442.1837
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Articles

Crystal Structure Refinement of Reedmergnerite, the Boron Analog of Albite

Joan R. Clark 1 and Daniel E. Appleman 1

1 U. S. Geological Survey, Washington, D.C.

Ordering of boron in a feldspar crystallographic site T1(0) has been found in reedmergnerite, which has silicon-oxygen and sodium-oxygen distances comparable to those in isostructural low albite. If a simple ionic model is assumed, calculated bond strengths yield a considerable charge imbalance in reedmergnerite, an indication of the inadequacy of the model with respect to these complex structures and of the speculative nature of conclusions based on such a model.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)