AM_Yoderite Formula: Si2 Al2.84 Mg Fe.16 O10 Name: Yoderite Unit cell: 8.022 5.816 7.25 90.0 104.9 90.0 , V=326.88 Space group: P121/M1 (11)

Higgins J B , Ribbe P H , Nakajima Y , American Mineralogist , 67 (1982) p.76-84, An ordering model for the commensurate antiphase structure of yoderite, Ordered, T = 20 deg C, Note: the sample is from Mautia Hill, Tanzania