I know different crystals resonant at different frequencies but is it possible to grow crystal at a certain frequency. An example would be growing crystals using Epsom salt or Alum in a magnetic field or when it's subjected to an electric field while two electrodes are submerged into the saturated solution.
The reason I ask is I know they can "program" magnetic fields one company doing this is called Correlated Magnetics
A video that explains "programming" magnets
I would like to do something similar but with crystals. I do know there are ways to test the resonance of crystal oscillators Video showing how to find resonance frequency of crystal oscillator
Now I'm just trying to see and find out if I can "program" crystals at various frequencies by subjecting them to magnetic fields or electric fields. Has anyone tried this or know of research being done?