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If you rub a slurry stone or a DMT on the hone does it create white slurry? A coticule will make white slurry no matter when it was quarried, it should only turn grey from the razor's steel.

It's hard to say what's going on without pictures of the entire stone...Either way if you like it then that's all that matters! I've owned quite a few coticules before and they can vary in terms of...