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How would I go about doing that. I was able to sand it on 120 sandpaper. I tried rubbing it on the norton 4/8k that I purchased and it makes slurry on both sides of it. It is very hard and sounds...

Is this a sharpening stone. Somebody was using it for sharpening before. It has some red flecks in it. Does anyone know what kind of stone it is if its for sharpening.
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