Be3Mn4Si3TeO12 crystallizes in the cubic P-43n space group. Be(1) is bonded to four equivalent O(1) atoms to form BeO4 tetrahedra that share corners with four equivalent Mn(1)TeO3 tetrahedra and corners with four equivalent Si(1)O4 tetrahedra. Mn(1) is bonded to one Te(1) and three equivalent O(1) atoms to form distorted MnTeO3 tetrahedra that share corners with three equivalent Be(1)O4 tetrahedra, corners with three equivalent Mn(1)TeO3 tetrahedra, and corners with three equivalent Si(1)O4 tetrahedra. Si(1) is bonded to four equivalent O(1) atoms to form SiO4 tetrahedra that share corners with four equivalent Be(1)O4 tetrahedra and corners with four equivalent Mn(1)TeO3 tetrahedra. Te(1) is bonded in a tetrahedral geometry to four equivalent Mn(1) atoms. O(1) is bonded in a distorted trigonal planar geometry to one Be(1), one Mn(1), and one Si(1) atom.
Be3Mn4Si3TeO12 crystallizes in the cubic P-43n space group. Be(1) is bonded to four equivalent O(1) atoms to form BeO4 tetrahedra that share corners with four equivalent Mn(1)TeO3 tetrahedra and corners with four equivalent Si(1)O4 tetrahedra. All Be(1)-O(1) bond lengths are 1.65 Å. Mn(1) is bonded to one Te(1) and three equivalent O(1) atoms to form distorted MnTeO3 tetrahedra that share corners with three equivalent Be(1)O4 tetrahedra, corners with three equivalent Mn(1)TeO3 tetrahedra, and corners with three equivalent Si(1)O4 tetrahedra. The Mn(1)-Te(1) bond length is 2.78 Å. All Mn(1)-O(1) bond lengths are 2.11 Å. Si(1) is bonded to four equivalent O(1) atoms to form SiO4 tetrahedra that share corners with four equivalent Be(1)O4 tetrahedra and corners with four equivalent Mn(1)TeO3 tetrahedra. All Si(1)-O(1) bond lengths are 1.65 Å. Te(1) is bonded in a tetrahedral geometry to four equivalent Mn(1) atoms. O(1) is bonded in a distorted trigonal planar geometry to one Be(1), one Mn(1), and one Si(1) atom.