AM_Makarochkinite_1 Formula: Fe5.145 Mg.225 Ti.54 Nb.07 Al.48 Sn.02 Ca1.77 Na.19 Mn.04 Si4.52 Be O20 Name: Makarochkinite Unit cell: 10.373 10.768 8.878 105.794 96.183 124.934 , V=737.32 Space group: P-1 (2)

Grew E S , Barbier J , Britten J , Yates M G , Polyakov V O , Shcherbakova E P , Halenius U , Shearer C K , American Mineralogist , 90 (2005) p.1402-1412, Makarochkinite, Ca2Fe2+4Fe3+TiSi4BeAlO20, a new beryllosilicate member of the, aenigmatite-sapphirine-surinamite group from the Il men Mountains (southern, Urals), Russia, Sample: 3319