KNaCaNi5Si8O24 is Esseneite-derived structured and crystallizes in the triclinic P1 space group. K(1) is bonded in a 10-coordinate geometry to one O(1), one O(13), one O(14), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), and one O(8) atom. Na(1) is bonded in a 8-coordinate geometry to one O(10), one O(11), one O(19), one O(2), one O(22), one O(3), one O(6), and one O(7) atom. Ca(1) is bonded in a 8-coordinate geometry to one O(1), one O(12), one O(20), one O(21), one O(4), one O(5), one O(8), and one O(9) atom. There are five inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to one O(10), one O(11), one O(15), one O(18), one O(19), and one O(22) atom to form NiO6 octahedra that share  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(4)O4 tetrahedra,  a cornercorner with one Si(5)O4 tetrahedra,  a cornercorner with one Si(6)O4 tetrahedra,  a cornercorner with one Si(7)O4 tetrahedra,  a cornercorner with one Si(8)O4 tetrahedra,  an edgeedge with one Ni(5)O6 octahedra, and edges with two equivalent Ni(3)O6 octahedra. In the second Ni site, Ni(2) is bonded to one O(12), one O(16), one O(17), one O(20), one O(21), and one O(9) atom to form NiO6 octahedra that share  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one Si(3)O4 tetrahedra,  a cornercorner with one Si(5)O4 tetrahedra,  a cornercorner with one Si(6)O4 tetrahedra,  a cornercorner with one Si(7)O4 tetrahedra,  a cornercorner with one Si(8)O4 tetrahedra,  an edgeedge with one Ni(5)O6 octahedra, and edges with two equivalent Ni(4)O6 octahedra. In the third Ni site, Ni(3) is bonded to one O(15), one O(18), one O(19), one O(22), one O(23), and one O(24) atom to form NiO6 octahedra that share  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(4)O4 tetrahedra,  a cornercorner with one Si(5)O4 tetrahedra,  a cornercorner with one Si(8)O4 tetrahedra,  an edgeedge with one Ni(4)O6 octahedra, edges with two equivalent Ni(1)O6 octahedra, and edges with two equivalent Ni(5)O6 octahedra. In the fourth Ni site, Ni(4) is bonded to one O(16), one O(17), one O(20), one O(21), one O(23), and one O(24) atom to form NiO6 octahedra that share  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one Si(3)O4 tetrahedra,  a cornercorner with one Si(6)O4 tetrahedra,  a cornercorner with one Si(7)O4 tetrahedra,  an edgeedge with one Ni(3)O6 octahedra, edges with two equivalent Ni(2)O6 octahedra, and edges with two equivalent Ni(5)O6 octahedra. In the fifth Ni site, Ni(5) is bonded to one O(15), one O(16), one O(17), one O(18), one O(23), and one O(24) atom to form NiO6 octahedra that share  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one Si(3)O4 tetrahedra,  a cornercorner with one Si(4)O4 tetrahedra,  an edgeedge with one Ni(1)O6 octahedra,  an edgeedge with one Ni(2)O6 octahedra, edges with two equivalent Ni(3)O6 octahedra, and edges with two equivalent Ni(4)O6 octahedra. There are eight inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(1), one O(13), one O(15), and one O(5) atom to form SiO4 tetrahedra that share  a cornercorner with one Ni(1)O6 octahedra,  a cornercorner with one Ni(3)O6 octahedra,  a cornercorner with one Ni(5)O6 octahedra,  a cornercorner with one Si(2)O4 tetrahedra, and corners with two equivalent Si(5)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 58-61°. In the second Si site, Si(2) is bonded to one O(13), one O(16), one O(2), and one O(6) atom to form SiO4 tetrahedra that share  a cornercorner with one Ni(2)O6 octahedra,  a cornercorner with one Ni(4)O6 octahedra,  a cornercorner with one Ni(5)O6 octahedra,  a cornercorner with one Si(1)O4 tetrahedra, and corners with two equivalent Si(6)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 58-61°. In the third Si site, Si(3) is bonded to one O(14), one O(17), one O(3), and one O(7) atom to form SiO4 tetrahedra that share  a cornercorner with one Ni(2)O6 octahedra,  a cornercorner with one Ni(4)O6 octahedra,  a cornercorner with one Ni(5)O6 octahedra,  a cornercorner with one Si(4)O4 tetrahedra, and corners with two equivalent Si(7)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 58-61°. In the fourth Si site, Si(4) is bonded to one O(14), one O(18), one O(4), and one O(8) atom to form SiO4 tetrahedra that share  a cornercorner with one Ni(1)O6 octahedra,  a cornercorner with one Ni(3)O6 octahedra,  a cornercorner with one Ni(5)O6 octahedra,  a cornercorner with one Si(3)O4 tetrahedra, and corners with two equivalent Si(8)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 58-61°. In the fifth Si site, Si(5) is bonded to one O(1), one O(19), one O(5), and one O(9) atom to form SiO4 tetrahedra that share  a cornercorner with one Ni(1)O6 octahedra,  a cornercorner with one Ni(2)O6 octahedra,  a cornercorner with one Ni(3)O6 octahedra, and corners with two equivalent Si(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 34-58°. In the sixth Si site, Si(6) is bonded to one O(10), one O(2), one O(20), and one O(6) atom to form SiO4 tetrahedra that share  a cornercorner with one Ni(1)O6 octahedra,  a cornercorner with one Ni(2)O6 octahedra,  a cornercorner with one Ni(4)O6 octahedra, and corners with two equivalent Si(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 36-58°. In the seventh Si site, Si(7) is bonded to one O(11), one O(21), one O(3), and one O(7) atom to form SiO4 tetrahedra that share  a cornercorner with one Ni(1)O6 octahedra,  a cornercorner with one Ni(2)O6 octahedra,  a cornercorner with one Ni(4)O6 octahedra, and corners with two equivalent Si(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 36-58°. In the eighth Si site, Si(8) is bonded to one O(12), one O(22), one O(4), and one O(8) atom to form SiO4 tetrahedra that share  a cornercorner with one Ni(1)O6 octahedra,  a cornercorner with one Ni(2)O6 octahedra,  a cornercorner with one Ni(3)O6 octahedra, and corners with two equivalent Si(4)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 34-58°. There are twenty-four inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to one K(1), one Ca(1), one Si(1), and one Si(5) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to one K(1), one Na(1), one Si(2), and one Si(6) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to one K(1), one Na(1), one Si(3), and one Si(7) atom. In the fourth O site, O(4) is bonded in a 2-coordinate geometry to one K(1), one Ca(1), one Si(4), and one Si(8) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one K(1), one Ca(1), one Si(1), and one Si(5) atom. In the sixth O site, O(6) is bonded in a 2-coordinate geometry to one K(1), one Na(1), one Si(2), and one Si(6) atom. In the seventh O site, O(7) is bonded in a 2-coordinate geometry to one K(1), one Na(1), one Si(3), and one Si(7) atom. In the eighth O site, O(8) is bonded in a 2-coordinate geometry to one K(1), one Ca(1), one Si(4), and one Si(8) atom. In the ninth O site, O(9) is bonded in a distorted T-shaped geometry to one Ca(1), one Ni(2), and one Si(5) atom. In the tenth O site, O(10) is bonded in a distorted T-shaped geometry to one Na(1), one Ni(1), and one Si(6) atom. In the eleventh O site, O(11) is bonded in a distorted T-shaped geometry to one Na(1), one Ni(1), and one Si(7) atom. In the twelfth O site, O(12) is bonded in a distorted T-shaped geometry to one Ca(1), one Ni(2), and one Si(8) atom. In the thirteenth O site, O(13) is bonded in a 3-coordinate geometry to one K(1), one Si(1), and one Si(2) atom. In the fourteenth O site, O(14) is bonded in a 2-coordinate geometry to one K(1), one Si(3), and one Si(4) atom. In the fifteenth O site, O(15) is bonded to one Ni(1), one Ni(3), one Ni(5), and one Si(1) atom to form a mixture of distorted edge and corner-sharing OSiNi3 trigonal pyramids. In the sixteenth O site, O(16) is bonded in a distorted rectangular see-saw-like geometry to one Ni(2), one Ni(4), one Ni(5), and one Si(2) atom. In the seventeenth O site, O(17) is bonded in a distorted rectangular see-saw-like geometry to one Ni(2), one Ni(4), one Ni(5), and one Si(3) atom. In the eighteenth O site, O(18) is bonded to one Ni(1), one Ni(3), one Ni(5), and one Si(4) atom to form a mixture of distorted edge and corner-sharing OSiNi3 trigonal pyramids. In the nineteenth O site, O(19) is bonded in a distorted rectangular see-saw-like geometry to one Na(1), one Ni(1), one Ni(3), and one Si(5) atom. In the twentieth O site, O(20) is bonded in a distorted rectangular see-saw-like geometry to one Ca(1), one Ni(2), one Ni(4), and one Si(6) atom. In the twenty-first O site, O(21) is bonded in a distorted rectangular see-saw-like geometry to one Ca(1), one Ni(2), one Ni(4), and one Si(7) atom. In the twenty-second O site, O(22) is bonded in a distorted rectangular see-saw-like geometry to one Na(1), one Ni(1), one Ni(3), and one Si(8) atom. In the twenty-third O site, O(23) is bonded in a trigonal non-coplanar geometry to one Ni(3), one Ni(4), and one Ni(5) atom. In the twenty-fourth O site, O(24) is bonded in a trigonal non-coplanar geometry to one Ni(3), one Ni(4), and one Ni(5) atom.
KNaCaNi5Si8O24 is Esseneite-derived structured and crystallizes in the triclinic P1 space group. K(1) is bonded in a 10-coordinate geometry to one O(1), one O(13), one O(14), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), and one O(8) atom. The K(1)-O(1) bond length is 3.06 Å. The K(1)-O(13) bond length is 2.63 Å. The K(1)-O(14) bond length is 2.66 Å. The K(1)-O(2) bond length is 3.01 Å. The K(1)-O(3) bond length is 2.92 Å. The K(1)-O(4) bond length is 2.98 Å. The K(1)-O(5) bond length is 3.30 Å. The K(1)-O(6) bond length is 3.25 Å. The K(1)-O(7) bond length is 2.90 Å. The K(1)-O(8) bond length is 2.96 Å. Na(1) is bonded in a 8-coordinate geometry to one O(10), one O(11), one O(19), one O(2), one O(22), one O(3), one O(6), and one O(7) atom. The Na(1)-O(10) bond length is 2.45 Å. The Na(1)-O(11) bond length is 2.45 Å. The Na(1)-O(19) bond length is 2.42 Å. The Na(1)-O(2) bond length is 2.85 Å. The Na(1)-O(22) bond length is 2.41 Å. The Na(1)-O(3) bond length is 2.86 Å. The Na(1)-O(6) bond length is 2.73 Å. The Na(1)-O(7) bond length is 2.74 Å. Ca(1) is bonded in a 8-coordinate geometry to one O(1), one O(12), one O(20), one O(21), one O(4), one O(5), one O(8), and one O(9) atom. The Ca(1)-O(1) bond length is 2.78 Å. The Ca(1)-O(12) bond length is 2.39 Å. The Ca(1)-O(20) bond length is 2.38 Å. The Ca(1)-O(21) bond length is 2.38 Å. The Ca(1)-O(4) bond length is 2.79 Å. The Ca(1)-O(5) bond length is 2.66 Å. The Ca(1)-O(8) bond length is 2.67 Å. The Ca(1)-O(9) bond length is 2.38 Å. There are five inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to one O(10), one O(11), one O(15), one O(18), one O(19), and one O(22) atom to form NiO6 octahedra that share  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(4)O4 tetrahedra,  a cornercorner with one Si(5)O4 tetrahedra,  a cornercorner with one Si(6)O4 tetrahedra,  a cornercorner with one Si(7)O4 tetrahedra,  a cornercorner with one Si(8)O4 tetrahedra,  an edgeedge with one Ni(5)O6 octahedra, and edges with two equivalent Ni(3)O6 octahedra. The Ni(1)-O(10) bond length is 2.03 Å. The Ni(1)-O(11) bond length is 2.02 Å. The Ni(1)-O(15) bond length is 2.14 Å. The Ni(1)-O(18) bond length is 2.13 Å. The Ni(1)-O(19) bond length is 2.12 Å. The Ni(1)-O(22) bond length is 2.13 Å. In the second Ni site, Ni(2) is bonded to one O(12), one O(16), one O(17), one O(20), one O(21), and one O(9) atom to form NiO6 octahedra that share  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one Si(3)O4 tetrahedra,  a cornercorner with one Si(5)O4 tetrahedra,  a cornercorner with one Si(6)O4 tetrahedra,  a cornercorner with one Si(7)O4 tetrahedra,  a cornercorner with one Si(8)O4 tetrahedra,  an edgeedge with one Ni(5)O6 octahedra, and edges with two equivalent Ni(4)O6 octahedra. The Ni(2)-O(12) bond length is 2.05 Å. The Ni(2)-O(16) bond length is 2.10 Å. The Ni(2)-O(17) bond length is 2.10 Å. The Ni(2)-O(20) bond length is 2.13 Å. The Ni(2)-O(21) bond length is 2.13 Å. The Ni(2)-O(9) bond length is 2.05 Å. In the third Ni site, Ni(3) is bonded to one O(15), one O(18), one O(19), one O(22), one O(23), and one O(24) atom to form NiO6 octahedra that share  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(4)O4 tetrahedra,  a cornercorner with one Si(5)O4 tetrahedra,  a cornercorner with one Si(8)O4 tetrahedra,  an edgeedge with one Ni(4)O6 octahedra, edges with two equivalent Ni(1)O6 octahedra, and edges with two equivalent Ni(5)O6 octahedra. The Ni(3)-O(15) bond length is 2.10 Å. The Ni(3)-O(18) bond length is 2.10 Å. The Ni(3)-O(19) bond length is 2.03 Å. The Ni(3)-O(22) bond length is 2.03 Å. The Ni(3)-O(23) bond length is 1.93 Å. The Ni(3)-O(24) bond length is 1.93 Å. In the fourth Ni site, Ni(4) is bonded to one O(16), one O(17), one O(20), one O(21), one O(23), and one O(24) atom to form NiO6 octahedra that share  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one Si(3)O4 tetrahedra,  a cornercorner with one Si(6)O4 tetrahedra,  a cornercorner with one Si(7)O4 tetrahedra,  an edgeedge with one Ni(3)O6 octahedra, edges with two equivalent Ni(2)O6 octahedra, and edges with two equivalent Ni(5)O6 octahedra. The Ni(4)-O(16) bond length is 2.10 Å. The Ni(4)-O(17) bond length is 2.10 Å. The Ni(4)-O(20) bond length is 2.08 Å. The Ni(4)-O(21) bond length is 2.08 Å. The Ni(4)-O(23) bond length is 1.95 Å. The Ni(4)-O(24) bond length is 1.95 Å. In the fifth Ni site, Ni(5) is bonded to one O(15), one O(16), one O(17), one O(18), one O(23), and one O(24) atom to form NiO6 octahedra that share  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one Si(3)O4 tetrahedra,  a cornercorner with one Si(4)O4 tetrahedra,  an edgeedge with one Ni(1)O6 octahedra,  an edgeedge with one Ni(2)O6 octahedra, edges with two equivalent Ni(3)O6 octahedra, and edges with two equivalent Ni(4)O6 octahedra. The Ni(5)-O(15) bond length is 2.08 Å. The Ni(5)-O(16) bond length is 2.09 Å. The Ni(5)-O(17) bond length is 2.09 Å. The Ni(5)-O(18) bond length is 2.08 Å. The Ni(5)-O(23) bond length is 2.08 Å. The Ni(5)-O(24) bond length is 2.08 Å. There are eight inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(1), one O(13), one O(15), and one O(5) atom to form SiO4 tetrahedra that share  a cornercorner with one Ni(1)O6 octahedra,  a cornercorner with one Ni(3)O6 octahedra,  a cornercorner with one Ni(5)O6 octahedra,  a cornercorner with one Si(2)O4 tetrahedra, and corners with two equivalent Si(5)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 58-61°. The Si(1)-O(1) bond length is 1.66 Å. The Si(1)-O(13) bond length is 1.64 Å. The Si(1)-O(15) bond length is 1.61 Å. The Si(1)-O(5) bond length is 1.64 Å. In the second Si site, Si(2) is bonded to one O(13), one O(16), one O(2), and one O(6) atom to form SiO4 tetrahedra that share  a cornercorner with one Ni(2)O6 octahedra,  a cornercorner with one Ni(4)O6 octahedra,  a cornercorner with one Ni(5)O6 octahedra,  a cornercorner with one Si(1)O4 tetrahedra, and corners with two equivalent Si(6)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 58-61°. The Si(2)-O(13) bond length is 1.65 Å. The Si(2)-O(16) bond length is 1.62 Å. The Si(2)-O(2) bond length is 1.64 Å. The Si(2)-O(6) bond length is 1.63 Å. In the third Si site, Si(3) is bonded to one O(14), one O(17), one O(3), and one O(7) atom to form SiO4 tetrahedra that share  a cornercorner with one Ni(2)O6 octahedra,  a cornercorner with one Ni(4)O6 octahedra,  a cornercorner with one Ni(5)O6 octahedra,  a cornercorner with one Si(4)O4 tetrahedra, and corners with two equivalent Si(7)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 58-61°. The Si(3)-O(14) bond length is 1.65 Å. The Si(3)-O(17) bond length is 1.62 Å. The Si(3)-O(3) bond length is 1.64 Å. The Si(3)-O(7) bond length is 1.63 Å. In the fourth Si site, Si(4) is bonded to one O(14), one O(18), one O(4), and one O(8) atom to form SiO4 tetrahedra that share  a cornercorner with one Ni(1)O6 octahedra,  a cornercorner with one Ni(3)O6 octahedra,  a cornercorner with one Ni(5)O6 octahedra,  a cornercorner with one Si(3)O4 tetrahedra, and corners with two equivalent Si(8)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 58-61°. The Si(4)-O(14) bond length is 1.64 Å. The Si(4)-O(18) bond length is 1.61 Å. The Si(4)-O(4) bond length is 1.66 Å. The Si(4)-O(8) bond length is 1.64 Å. In the fifth Si site, Si(5) is bonded to one O(1), one O(19), one O(5), and one O(9) atom to form SiO4 tetrahedra that share  a cornercorner with one Ni(1)O6 octahedra,  a cornercorner with one Ni(2)O6 octahedra,  a cornercorner with one Ni(3)O6 octahedra, and corners with two equivalent Si(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 34-58°. The Si(5)-O(1) bond length is 1.69 Å. The Si(5)-O(19) bond length is 1.63 Å. The Si(5)-O(5) bond length is 1.69 Å. The Si(5)-O(9) bond length is 1.61 Å. In the sixth Si site, Si(6) is bonded to one O(10), one O(2), one O(20), and one O(6) atom to form SiO4 tetrahedra that share  a cornercorner with one Ni(1)O6 octahedra,  a cornercorner with one Ni(2)O6 octahedra,  a cornercorner with one Ni(4)O6 octahedra, and corners with two equivalent Si(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 36-58°. The Si(6)-O(10) bond length is 1.59 Å. The Si(6)-O(2) bond length is 1.67 Å. The Si(6)-O(20) bond length is 1.66 Å. The Si(6)-O(6) bond length is 1.67 Å. In the seventh Si site, Si(7) is bonded to one O(11), one O(21), one O(3), and one O(7) atom to form SiO4 tetrahedra that share  a cornercorner with one Ni(1)O6 octahedra,  a cornercorner with one Ni(2)O6 octahedra,  a cornercorner with one Ni(4)O6 octahedra, and corners with two equivalent Si(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 36-58°. The Si(7)-O(11) bond length is 1.59 Å. The Si(7)-O(21) bond length is 1.66 Å. The Si(7)-O(3) bond length is 1.67 Å. The Si(7)-O(7) bond length is 1.68 Å. In the eighth Si site, Si(8) is bonded to one O(12), one O(22), one O(4), and one O(8) atom to form SiO4 tetrahedra that share  a cornercorner with one Ni(1)O6 octahedra,  a cornercorner with one Ni(2)O6 octahedra,  a cornercorner with one Ni(3)O6 octahedra, and corners with two equivalent Si(4)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 34-58°. The Si(8)-O(12) bond length is 1.61 Å. The Si(8)-O(22) bond length is 1.63 Å. The Si(8)-O(4) bond length is 1.69 Å. The Si(8)-O(8) bond length is 1.69 Å. There are twenty-four inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to one K(1), one Ca(1), one Si(1), and one Si(5) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to one K(1), one Na(1), one Si(2), and one Si(6) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to one K(1), one Na(1), one Si(3), and one Si(7) atom. In the fourth O site, O(4) is bonded in a 2-coordinate geometry to one K(1), one Ca(1), one Si(4), and one Si(8) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one K(1), one Ca(1), one Si(1), and one Si(5) atom. In the sixth O site, O(6) is bonded in a 2-coordinate geometry to one K(1), one Na(1), one Si(2), and one Si(6) atom. In the seventh O site, O(7) is bonded in a 2-coordinate geometry to one K(1), one Na(1), one Si(3), and one Si(7) atom. In the eighth O site, O(8) is bonded in a 2-coordinate geometry to one K(1), one Ca(1), one Si(4), and one Si(8) atom. In the ninth O site, O(9) is bonded in a distorted T-shaped geometry to one Ca(1), one Ni(2), and one Si(5) atom. In the tenth O site, O(10) is bonded in a distorted T-shaped geometry to one Na(1), one Ni(1), and one Si(6) atom. In the eleventh O site, O(11) is bonded in a distorted T-shaped geometry to one Na(1), one Ni(1), and one Si(7) atom. In the twelfth O site, O(12) is bonded in a distorted T-shaped geometry to one Ca(1), one Ni(2), and one Si(8) atom. In the thirteenth O site, O(13) is bonded in a 3-coordinate geometry to one K(1), one Si(1), and one Si(2) atom. In the fourteenth O site, O(14) is bonded in a 2-coordinate geometry to one K(1), one Si(3), and one Si(4) atom. In the fifteenth O site, O(15) is bonded to one Ni(1), one Ni(3), one Ni(5), and one Si(1) atom to form a mixture of distorted edge and corner-sharing OSiNi3 trigonal pyramids. In the sixteenth O site, O(16) is bonded in a distorted rectangular see-saw-like geometry to one Ni(2), one Ni(4), one Ni(5), and one Si(2) atom. In the seventeenth O site, O(17) is bonded in a distorted rectangular see-saw-like geometry to one Ni(2), one Ni(4), one Ni(5), and one Si(3) atom. In the eighteenth O site, O(18) is bonded to one Ni(1), one Ni(3), one Ni(5), and one Si(4) atom to form a mixture of distorted edge and corner-sharing OSiNi3 trigonal pyramids. In the nineteenth O site, O(19) is bonded in a distorted rectangular see-saw-like geometry to one Na(1), one Ni(1), one Ni(3), and one Si(5) atom. In the twentieth O site, O(20) is bonded in a distorted rectangular see-saw-like geometry to one Ca(1), one Ni(2), one Ni(4), and one Si(6) atom. In the twenty-first O site, O(21) is bonded in a distorted rectangular see-saw-like geometry to one Ca(1), one Ni(2), one Ni(4), and one Si(7) atom. In the twenty-second O site, O(22) is bonded in a distorted rectangular see-saw-like geometry to one Na(1), one Ni(1), one Ni(3), and one Si(8) atom. In the twenty-third O site, O(23) is bonded in a trigonal non-coplanar geometry to one Ni(3), one Ni(4), and one Ni(5) atom. In the twenty-fourth O site, O(24) is bonded in a trigonal non-coplanar geometry to one Ni(3), one Ni(4), and one Ni(5) atom.