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I think you are right, I would just double check how they work before buying hence Post #3 which said exactly that

Spyderco for one makes Ceramic sharpening Hones....

There is no need for Water or Oil nor is there any breakdown of any Binder and Grit into slurry...
Waterstones work one way to cut steel...

Honestly your reference to them the other day was the first I ever heard of them at all, let alone them being used on Razors,, I question the word Ceramic in conjuction with the Chosera if Chocera is...