Kit Contents: 24 silver 8-peg calcium ion centers 49 blue 4-peg fluoride ion centers 130-1.25" PVC, clear bonds Assembly instruction booklet In the fluorite structure, calcium ions lie in an expanded face centered cube, with fluoride ions filling tetrahedral holes between the cation layers. The coordination number is 4 for the anion and eight for the cation. The model can be used to show these structural arrangements.
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