As more material is absorbed, the crystal becomes heavier and vibrates more slowly.

Another amazing fact is that crystals actually vibrate at different frequencies when they come into contact with other energy fields.

The cut of the quartz crystal determines the crystal's vibrating frequencies, such as the common AT cut used for crystal filters designed for radio communications.

The crystal vibrated.

The crystal vibrated with desire.

The crystal mechanically vibrates as a resonator, and its frequency of vibration determines the oscillation frequency.

In a crystal oscillator, the crystal mostly vibrates in one axis, therefore only one phase is dominant.

The crystal vibrated almost excitedly to the sound.

The crystal vibrated, shuddered, and gave a high whining sound that began to rise in pitch.

Because the crystals within would vibrate, then disintegrate.