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Science 30 May 1969:
Vol. 164. no. 3883, pp. 1063 - 1064
DOI: 10.1126/science.164.3883.1063
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Articles

Basic Ferric Phosphates: A Crystallochemical Principle

Paul B. Moore 1

1 Department of Geophysical Sciences, University of Chicago, Chicago, Illinois 60637

A polyatomic complex of iron-oxygen octahedral face-sharing triplets corner-linked to four other octahedra occurs in the atomic arrangements of the basic iron phosphates dufrenite, rockbridgeite, beraunite, and laubmannite. This complex is further knit together by the phosphate tetrahedra. The family of basic ferric phosphates arises from the variety of ways in which the complexes can be linked along a third "variable" crystallographic axis.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Description and crystal structure of a new mineral - plimerite, Formula(PO4)3(OH)5 - the Zn-analogue of rockbridgeite and frondelite, from Broken Hill, New South Wales, Australia.
P. Elliott, U. Kolitsch, G. Giester, E. Libowitzky, C. McCammon, A. Pring, W. D. Birch, and J. Brugger (2009)
Mineralogical Magazine 73, 131-148
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Science. ISSN 0036-8075 (print), 1095-9203 (online)