Single-crystal X-ray structurePowder X-ray diffractionVibrational spectraSynthetic novgorodovaite analog Ca-2(C2O4)Cl-2 center dot 2H(2)O is identical to its natural counterpart. It crystallizes in the monoclinic I2/m space group with a = 6.9352(3), b = 7.3800(4), c = 7.4426(3) ,...