AM_Messelite Formula: Ca2 (Fe.89 Mg.11) P2 O10 H4 Name: Messelite Unit cell: 5.48 5.759 6.569 90.18 102.62 108.45 , V=191.32 Space group: P-1 (2)

Fleck M , Kolitsch U , Zeitschrift fur Kristallographie , 218 (2003) p.553-567, Natural and synthetic compounds with krohnkite-type chains. An update, Locality: Leithorizont M , Messel oil shale, near Darmstadt, Germany