Crystal distortion caused during growth when one part of the lattice is offset in relation to the rest?

Crystal distortion caused during growth when one part of the lattice is offset in relation to the rest?

• A. Crystal Shape
• B. Crystal Planes
• C. Doubling
• D. Glide Plane

Answer: (D)

Glide plane is the idea that best fits this description. It’s a symmetry operation where a part of the crystal is reflected across a plane and then translated parallel to that plane by a fraction of a lattice vector. If growth causes one region to shift relative to the rest along that plane, you get a planar distortion along the glide plane. This kind of offset is exactly what a glide plane describes—a distortion tied to a specific plane in the crystal. The other terms don’t capture this notion. Crystal shape refers to external form, crystal planes are just the sets of parallel lattice planes used for indexing, and doubling implies simply repeating the unit cell without a relative offset between parts of the lattice.

Glide plane is the idea that best fits this description. It’s a symmetry operation where a part of the crystal is reflected across a plane and then translated parallel to that plane by a fraction of a lattice vector. If growth causes one region to shift relative to the rest along that plane, you get a planar distortion along the glide plane. This kind of offset is exactly what a glide plane describes—a distortion tied to a specific plane in the crystal.

The other terms don’t capture this notion. Crystal shape refers to external form, crystal planes are just the sets of parallel lattice planes used for indexing, and doubling implies simply repeating the unit cell without a relative offset between parts of the lattice.