AM_Shortite Formula: Ca2 Na2 C3 O9 Name: Shortite Unit cell: 4.947 11.032 7.108 90.0 90.0 90.0 , V=387.92 Space group: AMM2 (38)

Dickens B , Hyman A , Brown W E , Journal of Research of the National Bureau of Standards - Physics and Chemistry , 75A (1971) p.129-135, Crystal structure of Ca2Na2(CO3)3 (shortite), Note: Y- and z-coordinates of Ca adjusted to match reported bond lengths