Hexagonal Close-Packed Crystal Structure Diagram | Science Education #226760 (License: Personal Use)

This image illustrates a hexagonal close-packed (HCP) crystal structure, where identical spheres are arranged in layers with ABAB stacking to achieve maximum packing efficiency (74%). Each sphere contacts 12 neighbors-6 in its layer, 3 above, and 3 below-demonstrating key principles in solid-state physics and metallurgy. The glossy blue rendering enhances depth perception and highlights symmetry.

Used in educational resources, textbooks, and online courses covering crystallography, materials science, or introductory chemistry. Matches user intent for visualizing atomic arrangements, comparing FCC vs HCP structures, or understanding metal lattice types.