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It isnt too bad out of flat now, I've been slowly working it here and there with a flattening stone, I think it's responding as well as one can expect a stone this hard to.

I try to avoid anything...

Yeah, I'm not worried about the thread wandering. The original topic is settled, we know what the eBay lot contained. Where it wanders from this point doesn't make much a differenice one way or the...

No worries, it's loosely related to the topic at hand and a good read if nothing else.

I don't think the value of stropping is understated really, but the options aren't as varied or interesting...

Strangely enough both sides of this are convex, not cocave. Opposite of what I think of when I see the word dished. I think it's too late for both of the diamond plates I've got, my DMT has probably...

Won't it also eat a cookie sheet? I would imagine steel to be easier to abrade.

Yeah, I'm not enjoying this as much as I thought I would lol. And the big one is the worst of them all. Both sides are - were - high in the center to the point I wouldn't even use it on a pocket...

It seems like I've spent the better part of an hour or 2 every day trying to get these things into fighting shape. Flattening them? Virtually impossible. Sand paper did nothing, and the DMT...

So, I was in the middle of lapping the smaller stones (Jesus Christ these things are hard!), and taking pictures of the lapping/burnishing process. One side of that little black rock was very flat...

I'm not quite sure I'm believing what I'm seeing here. So I busted out my Soft and Hard Arkansas stones. Both of these have pores that are readily visible to the naked eye, but I checked them out...

After simple green bath and a little scouring pad action:

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Ready for surface prep and side beveling.

Slightly better pictures:

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Well, the jury is in on the big rock:

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225 lumen flash light near the edge, you can see light about a third of an inch through the rock. She's translucent! Considering it came with a...

Hahaha! Funny you mention that, the first thing I did with my DMT was run a screw driver over it 100 passes or so to knock off all the high sitting diamonds.

Well, hopefully the lot of hones will...

Rolling his eyes and refusing to touch this one lol.

:beer2:

What is this Chert Nagura of which you speak?

Well, in my line of work there have been times where I've had to modify and make a tool fit the job because either A: I need the tool now and can't wait until Wednesday for the tool truck. B:the...

Well, maybe less for a SOFT Arkansas. Or even a medium/hard. But burnishing 1 side doesn't 'destroy' it's cutting properties. It changes them on that one side and gives you 2 surfaces to work with, 1...

It's a slightly different technique than working with a Thuringian/Escher/Coticule. With those 3, you take a piece of the same type of stone and work up a slurry from the parent material. With a hard...

This is my suspicion as well. I vaguely remember back when the grades were: soft, Hard, and Black. I can only imagine Translucent isn't new. But I would figure most of these variations of 'black'...

Well, I'm assuming* the fellow selling these found them all in the same place. Of particular interest in the lot were the 3 stones mentioned, and there's also a diamond lapping plate in there. If...

Now I'm getting all excited. Can't wait to get hold of it, clean it up, and get some light on it so I can see if it's a translucent.

I've got a small piece of coticule and BBW to make some...

Yeah, I've seen a lot of classifications. Surgical black, true black, "blacks" that aren't black, true hard, black hard, and so on. That's part of what makes the guess work difficult. Sidmind's...

I saw a lot on Ebay that I couldn't resist. It had what appear to be a Washita and Black Arkansas, and then there was this:

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Any guesses what that large hone in back is? I'm thinking...