AM_Manganilvaite Formula: Ca.903 Mn.6 Fe2.497 Si2 O9 H Name: Manganilvaite Unit cell: 13.025 8.8514 5.8486 90.0 90.167 90.0 , V=674.28 Space group: P121/A1 (14)

Zotov N , Kockelmann W , Jacobsen S D , Mitov I , Paneva D , Vassileva R D , Bonev I K , The Canadian Mineralogist , 43 (2005) p.1043-1053, Structure and cation order in manganilvaite:, a combined X-ray-diffraction, neutron-diffraction and mossbauer study, Sample: Ossikovo Pb-Zn skarn, Rhodope Mountains, Bulgaria, Sample: powder X-ray + neutron analysis