Crystal Lattice Structures
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Introduction

Simple Cubic

Body Centered Cubic

Face Centered Cubic

Primitive FCC

Simple Hexagonal

Hexagonal Closest Packing

HCP Coordination

Cubic Closest Packing

CCP Coordination

Rhombohedral

2- & 3-Layer repeats

4-layer repeats

Tetrahedral Holes

Octahedral Holes

CsCl

NaCl

Halite

Fluorite

Zinc Blende

Exercises
Sodium Chloride
  In a NaCl crystal, each ion resides on a separate, interpenetrating FCC lattice, and the two lattices have the same unit cell dimensions. 

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Steven F. Watkins, Department of Chemistry, Louisiana State University