AM_Nyboite Formula: O22 F2 Si7 Al Mg3.214 Sc1.786 Na3 Name: Nyboite Unit cell: 9.8425 18.157 5.3381 90.0 103.979 90.0 , V=925.72 Space group: C12/M1 (12)

Raudsepp M , Turnock A C , Hawthorne F C , American Mineralogist , 72 (1987) p.959-964, Characterization of cation ordering in synthetic scandium-fluor-eckermannite,, indium-fluor-eckermannite, and scandium-fluor-nyboite by Rietveld structure, refinement, Sample: FScNY-A3