CaF2 - Fluorite

Synchronised View

- Ca2+ 8 (cubic) : F- 4 (tetrahedral)

Ca2+ with F- in all Td holes

Polyhedra - Edge-sharing , edge-sharing

Cations form the cubic close packing while anions fill all tetrahedral holes. Ca2+ ions are coordinated in cubic fashion (CN=8) while F- ions are tetrahedrally coordinated (CN=4)


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Related Structure: Antifluorite (Na2O)