AM_Cafetite
Formula: Ti2 Ca O6 H2
Name: Cafetite
Unit cell: 4.9436 12.109 15.911 90.0 98.937 90.0 , V=940.90
Space group: P121/N1 (14)

Krivovichev S V , Yakovenchuk V N , Burns P C , Pakhomovsky Y A , Menshikov Y P , American Mineralogist , 88 (2003) p.424-429, Cafetite, Ca[Ti2O5](H2O): Crystal structure and revision of chemical formula, Locality: alkaline rocks in the Afrikanda massif, Kola peninsula, Russia.