Aturan Pauling
caption: Jari-jari radius kritis. Diagram ini untuk bilangan koordinasi enam: 4 anion tampak pada bidang datar, 1 di atas dan 1 di bawah. Batas kestabilan adalah r C /r A = 0,414
caption: The NaCl crystal structure. Each Na atom has six nearest neighbors, with octahedral geometry.
caption: The CsCl unit cell. Each Cs atom has eight nearest neighbors, with cubic geometry.
caption: Struktur olivine. M (Mg atau Fe) = bulatan biru, Si = tetrahedral merah muda, O = bulatan merah.