Both calcium chromate(V) chloride (Ca2CrO4Cl) and calcium phosphate chloride (Ca2PO4Cl) crystallize in the orthorhombic system, space group Pbcm, with four molecules per unit cell. The dimensions of the unit cell are: a=6.259 plus or minus 0.005, b=7.124 plus or minus 0.005, c=10.990...