Reports

Crystal Structure of Weddellite

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Science  23 Oct 1964:
Vol. 146, Issue 3643, pp. 518-519
DOI: 10.1126/science.146.3643.518

Abstract

On the basis of x-ray analysis of its crystal structure, weddellite (the tetragonal crystal of calcium oxalate polyhydrate) has been determined to be a zeolitic dihydrate salt. The oxalate ion has at least the symmetry 2mm and possibly the symmetry mmm. The calcium ion is coordinated with eight oxygen atoms arranged in the form of a distorted cubic antiprism.

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