Recent example

Gormanite

Triclinic

19 independent atoms

Solved by direct space method (ESPOIR) from 500 extracted structure factors

Synchrotron data

In spite of 3 impurities (10% of the sample)

(Mg,Fe2+)3(Al,Fe3+)4(PO4)4(OH)6?2H2O

A. Le Bail, P.W. Stephens, F. Hubert, European Journal of Mineralogy, in press

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