Ba2MgLa2Zn(WO6)2 crystallizes in the trigonal R-3m space group. Ba(1) is bonded to three equivalent O(2) and nine equivalent O(1) atoms to form BaO12 cuboctahedra that share corners with three equivalent La(1)O12 cuboctahedra, corners with six equivalent Ba(1)O12 cuboctahedra, corners with three equivalent Mg(1)O6 octahedra, faces with three equivalent Ba(1)O12 cuboctahedra, faces with four equivalent La(1)O12 cuboctahedra, faces with three equivalent Zn(1)O6 octahedra, and faces with four equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles are 17°. Mg(1) is bonded to six equivalent O(2) atoms to form MgO6 octahedra that share corners with six equivalent Ba(1)O12 cuboctahedra, faces with six equivalent La(1)O12 cuboctahedra, and faces with two equivalent W(1)O6 octahedra. La(1) is bonded to three equivalent O(1) and nine equivalent O(2) atoms to form distorted LaO12 cuboctahedra that share corners with three equivalent Ba(1)O12 cuboctahedra, corners with six equivalent La(1)O12 cuboctahedra, corners with three equivalent W(1)O6 octahedra, faces with three equivalent La(1)O12 cuboctahedra, faces with four equivalent Ba(1)O12 cuboctahedra,  a faceface with one Zn(1)O6 octahedra, faces with three equivalent Mg(1)O6 octahedra, and faces with three equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles are 11°. W(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form distorted WO6 octahedra that share corners with three equivalent La(1)O12 cuboctahedra, corners with three equivalent Zn(1)O6 octahedra, faces with three equivalent La(1)O12 cuboctahedra, faces with four equivalent Ba(1)O12 cuboctahedra, and  a faceface with one Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles are 10°. Zn(1) is bonded to six equivalent O(1) atoms to form ZnO6 octahedra that share corners with six equivalent W(1)O6 octahedra, faces with two equivalent La(1)O12 cuboctahedra, and faces with six equivalent Ba(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles are 10°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to three equivalent Ba(1), one La(1), one W(1), and one Zn(1) atom. In the second O site, O(2) is bonded in a 6-coordinate geometry to one Ba(1), one Mg(1), three equivalent La(1), and one W(1) atom.
Ba2MgLa2Zn(WO6)2 crystallizes in the trigonal R-3m space group. Ba(1) is bonded to three equivalent O(2) and nine equivalent O(1) atoms to form BaO12 cuboctahedra that share corners with three equivalent La(1)O12 cuboctahedra, corners with six equivalent Ba(1)O12 cuboctahedra, corners with three equivalent Mg(1)O6 octahedra, faces with three equivalent Ba(1)O12 cuboctahedra, faces with four equivalent La(1)O12 cuboctahedra, faces with three equivalent Zn(1)O6 octahedra, and faces with four equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles are 17°. All Ba(1)-O(2) bond lengths are 2.80 Å. There are six shorter (2.88 Å) and three longer (3.17 Å) Ba(1)-O(1) bond lengths. Mg(1) is bonded to six equivalent O(2) atoms to form MgO6 octahedra that share corners with six equivalent Ba(1)O12 cuboctahedra, faces with six equivalent La(1)O12 cuboctahedra, and faces with two equivalent W(1)O6 octahedra. All Mg(1)-O(2) bond lengths are 2.03 Å. La(1) is bonded to three equivalent O(1) and nine equivalent O(2) atoms to form distorted LaO12 cuboctahedra that share corners with three equivalent Ba(1)O12 cuboctahedra, corners with six equivalent La(1)O12 cuboctahedra, corners with three equivalent W(1)O6 octahedra, faces with three equivalent La(1)O12 cuboctahedra, faces with four equivalent Ba(1)O12 cuboctahedra,  a faceface with one Zn(1)O6 octahedra, faces with three equivalent Mg(1)O6 octahedra, and faces with three equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles are 11°. All La(1)-O(1) bond lengths are 3.06 Å. There are three shorter (2.66 Å) and six longer (2.90 Å) La(1)-O(2) bond lengths. W(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form distorted WO6 octahedra that share corners with three equivalent La(1)O12 cuboctahedra, corners with three equivalent Zn(1)O6 octahedra, faces with three equivalent La(1)O12 cuboctahedra, faces with four equivalent Ba(1)O12 cuboctahedra, and  a faceface with one Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles are 10°. All W(1)-O(1) bond lengths are 1.93 Å. All W(1)-O(2) bond lengths are 2.13 Å. Zn(1) is bonded to six equivalent O(1) atoms to form ZnO6 octahedra that share corners with six equivalent W(1)O6 octahedra, faces with two equivalent La(1)O12 cuboctahedra, and faces with six equivalent Ba(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles are 10°. All Zn(1)-O(1) bond lengths are 2.10 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to three equivalent Ba(1), one La(1), one W(1), and one Zn(1) atom. In the second O site, O(2) is bonded in a 6-coordinate geometry to one Ba(1), one Mg(1), three equivalent La(1), and one W(1) atom.