Re: Grinding crystals
I've done my fair share of FT243's with Ajax (or Vim), but I've never tried to do anything similar with modern crystals which, as you point out, usually have a metal film deposited on the active surfaces. With that film present, quite how any abrasive or etching process could be carried is hard to say. Perhaps that film needs to be removed at least in one side, then the quartz processed, and film replaced by some procedure. That sounds like quite a learning curve.
Do you have any pictures of what's inside the can?
B
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