Thread: Found This Stone

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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Can you get it to slurry up with another stone? Interested in what it would look like and whether or not it kicks up any sand particles. In which case you will then know what it is...
It looks pretty rough but looks can be deceiving. After trying to slurry up, look at the slurry and feel it for large particles.

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 like ceramic if i tap my nails on it.

Well, then I think the only thing you can do is try it. But go very lightly at first to make sure no huge particles are tearing your blade up. Do a few passes and look at the edge under a magnifying device of some kind. That, in comparison to known stones will give you an answer.

Oh, and if you have anything higher than 120 I would use that instead. 120 is a little low imo. And rinse the stone well to get any grit out that may have embedded itself into the stone.

This is the sort of thing GoldDollar lab rats are made for

Originally Posted by Phoenix51

This is the sort of thing GoldDollar lab rats are made for

Yep, I rotate 3 of them...

For a propper ID you need to lap the stone at least on one face and a side...that means start at 80-100 grit and go uo ti 3-400...then when you have removed all the dirt and scratch marks get some clear pictures of it dry, wet, and wet with slurry.

It could be anything from these pics...looks like a lower grit hone.