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02-20-2015, 03:47 PM #11
- Join Date
- Jul 2011
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- 2,110
Thanked: 459There are a lot of different slate stones like that, it's hard to tell how good it is until you get a razor on it, perhaps get some pics of an edge against pictures of an edge from a known stone, etc. Even in the US there is a lot of slate and chert that is not novaculite but that will finish a razor. For various reasons (jasper comes to mind), it's either extremely hard and oddly shaped because it's not cut into a stone for honing because there are other users (jewelers) or there just aren't big enough pieces, etc.
There are also a lot of stones capable of finishing a razor that just don't do it that well. If the shave is like a coticule, then for a slate that's problematic, I'd say. It depends on the coticule, too, but it may be that the particle size in that stone is a bit large. Who knows?
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06-29-2015, 10:10 PM #12
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06-30-2015, 06:17 AM #13
I did some tests, this stone is waterstone for sure, it is a finishing or pre finishing stone depends on user. It gives an edge like avarage Thuringians, edge are smooth may be little bit less keenness(very subjective I know). Cutting speed is moderate, no slurry dulling as far as I observed, not suitable for bevel setting. I know we can't say grit range for naturals but I put this stone between coticule and Chinese PHIG IMHO.
And I have to say these stones vary a lot even if they come from same quarry (keenness/smoothness).Last edited by Chinaski; 06-30-2015 at 06:19 AM. Reason: grammer
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07-07-2015, 11:07 AM #14
i think it's a hone from blacksea. i've already heard about it. You can search it with "artvin bley tasi" (mean; artvin hone)
here a post about this hone but in turkish.
Artvin biley taşı
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07-07-2015, 11:13 AM #15
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07-07-2015, 11:17 AM #16
while reading the post in turkish forum, they told about 10k grit but very slow one. between coticule and thuring.
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07-07-2015, 11:43 AM #17
Yes, I tried two of them and they are different in finemess and cutting speed.