AM_Ca4Al6O13 Formula: Al6 Ca4 O13 Name: Ca4Al6O13 Unit cell: 5.3002 17.761 21.0887 90.0 90.0 90.0 , V=1985.22 Space group: PCAN (60)

Kahlenberg V , Fischer R X , Shaw C S J , American Mineralogist , 85 (2000) p.1492-1496, High-pressure Ca4Al6O13: An example of a calcium aluminate with three, different types of coordination polyhedra for aluminum