Thread: Ebay Gamble

Originally Posted by FAL

What difference does it make Gent's???? as long as you get to the edge Keenness you desire?

Yeah, I have a mountain of Chert Naguras under foot if anyone wants some.

What is this Chert Nagura of which you speak?

Originally Posted by eKretz

Voids and free space aren't there in a black or translucent Ark. Not enough to do anything anyway. I can see single digit micron scale with my scope and there are no pores visible on any of my black or translucent stones. SiO2, quartz, silica, silicon dioxide - these are all the same thing in slightly different physical form. There are pores/free space in the less dense Ark stones I.E. Washita - and those are certainly influencing cutting properties.

Take a look at this page in the right hand side you will see a picturre of three arkies read below the picture about the the space and pores and loading .
Novaculite: Used for making stone cutting tools and sharpening metal blades.

Originally Posted by Marshal

What is this Chert Nagura of which you speak?

Single cell algae that secrete a hard shell composed of silicon dioxide. Later on it turns into quartz silica.

Where the hecek is Davew when you need him? How about you guys just drive over to Dans and see what he says about burnishing, he's got a few more years in it than most of us has been alive. Tc

Originally Posted by tcrideshd

Where the hecek is Davew when you need him? How about you guys just drive over to Dans and see what he says about burnishing, he's got a few more years in it than most of us has been alive. Tc

Rolling his eyes and refusing to touch this one lol.

Originally Posted by AlienEdge

Take a look at this page in the right hand side you will see a picturre of three arkies read below the picture about the the space and pores and loading .
Novaculite: Used for making stone cutting tools and sharpening metal blades.

From your link:

“Washita Stone” has the appearance of unglazed porcelain, a porosity of several percent and serves as a good stone for coarse sharpening. An extremely fine-grained material known as “Arkansas Stone” has almost NO porosity and is an excellent tool for honing a razor-sharp blade.

(Emphasis mine).

Burnishing is not a big deal. One can wait for the stone to burnish on its own through use or do it right away to prep for razor use. Either way, a worn-in stone works best for comfortable shaving razor edges from black or translucent Arks.

I always said there were pores that could be clogged or loaded. I never said how many pores each of the different Arkies had per stone.
An extremely fine-grained material known as “Arkansas Stone” has almost no porosity and is an excellent tool for honing a razor-sharp blade.

This is under the picture of the three Arkansas stones.
The white stone has a coarse texture for initial sharpening, the mottled stone has an intermediate texture for resharpening and the black stone has a very fine texture for honing an ultrasharp edge. The stones are used with a drop of oil that lubricates the sharpening strokes and keeps metal from loading the pore spaces in the stone.

I agree with what you wrote here. All my stone worked well from the start and they still work well even if they have worn (broken in) more than I can tell.
"Burnishing is not a big deal. One can wait for the stone to burnish on its own through use or do it right away to prep for razor use. Either way, a worn-in stone works best for comfortable shaving razor edges from black or translucent Arks."

Yes, I already mentioned this in an earlier post. Where I said that Washita and coarser Ark stones had more porosity which would affect cutting. The black and translucent Arks have such minimal free space in the stone that any porosity is basically irrelevant. There's nothing there to clog. I remember reading the same in an old report by a geologist now that I think about it. I'll see if I can find a link.

It is not just clogging it is like I said before as well . If you buy mud grips for a 4x4 truck and then cut the tread off the tire so that it goes through the mud slow or not at all. You have defeated the whole purpose. It doesn't matter what the stone is if you buy a DMT stone and you take a chisel and knock all the diamonds out of the nickle plating you have altered it's ability to cut well. It seems pointless to me. Your trying to fix something that is not broken or you have purchase the wrong tool for the job. I don't see how it is going to sharpen or hone anything better.

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 be in tomorrow so I can check this puppy out!