Hard Aizu?

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Got this big boy “Aizu” from Auctions and gave it a try. Hard to build a slurry with no Atoma. Knife looked like didnt even sharpen, switched to Aoto and created slurry right away… left some scuffs (high) due to incosistency but at the end after stropping could slice tomato horizontally easy but not arm hair…

Ideas if this Aizu is not authentic (only one side seems sealed) or should I use atoma to create slurry… Home use here, nothing fancy!

Thanks
 

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Auction stones are always a gamble, I’ve gotten great stones for very little and lost a lot of money on stones that looked really incredible and had higher prices. Having made detailed pricing notes for everything over the last 18 months, I’ve netted out to paying basically western retail for all the keepers. So… yeah, retailers are giving fair prices for tested stones lol
 
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Auction stones are always a gamble, I’ve gotten great stones for very little and lost a lot of money on stones that looked really incredible and had higher prices. So… yeah, retailers are giving fair prices for tested stones lol
Guess we all learn the hard way somehow lol. Guess I gotta keep an eye here in BST for a real Aizu then. Meanwhile not sure what I’m going to do with this brick. Worst scenario, door stopper lol.
 
Sasaguchi/matsuura is a softer sand stone.
I've actually had a stone exactly like that one and big too, like 320x80x100 and I can tell you right now, it works fantastic at hiding the pond tarp on one of the more visually exposed parts of my parents yard.

Impossibly hard and impractically coarse. Best used for decoration or civil disobedience.
 
These or at least the ones I have are very hard and really grainy. I haven’t found a great use for mine to tell you honestly. I think maybe they could be useful on farm tools. I’m no expert though.🤷
Real matsuura are useless now. Used to be used for shaping swords, they're soft and coarse enough to remove material consistently, evenly and without gouging or tearing. They're pretty crappy compared to similar synths and I think that's saying a lot, coarse stones are almost all disgustingly bad.
 
The grains on the side of the stone give it away as being something a bit more coarse. The kind of glossiness or harshness in how it reflects light suggests it's a harder stone which it seems to be. And the grains on the stone surface also look coarse, while aizu looks like velvet with no discernable grains, aside from white spots, and occasional black range. The renge appears in other stones so that's confusing.

Really though, I buy stones on how they look more than what the sellers had said to me on Yahoo auction because they can lie ... A decent amount

The color is almost like aizu, but slightly greyer brown than any I've seen before. If in doubt, find other stones on the web and slurry pictures you know to be legit, and use that as reference. Some stones only work with diamond plate, and some sellers show the diamond plate slurry instead of the real self-slurry of the stone.

I've had my share of doorstop stones haha ugh
 
The grains on the side of the stone give it away as being something a bit more coarse. The kind of glossiness or harshness in how it reflects light suggests it's a harder stone which it seems to be. And the grains on the stone surface also look coarse, while aizu looks like velvet with no discernable grains, aside from white spots, and occasional black range. The renge appears in other stones so that's confusing.

Really though, I buy stones on how they look more than what the sellers had said to me on Yahoo auction because they can lie ... A decent amount

The color is almost like aizu, but slightly greyer brown than any I've seen before. If in doubt, find other stones on the web and slurry pictures you know to be legit, and use that as reference. Some stones only work with diamond plate, and some sellers show the diamond plate slurry instead of the real self-slurry of the stone.

I've had my share of doorstop stones haha ugh
It does look coarser grain on the side and harder surface, but I haven’t tried it with Atoma slurry yet. Will do try and let you know. Thanks. Might use it for axes, pikes, shovels etc lmao

Reason I bought it was I found myself in a bidding war in NeoKyo but not sure if it was a shill bid war lmao
 
Yeah! I had 3 other Aizus in posession after this “AiZu” and the feel is different in sharpening and slurry.

Yes, I shared because I think we underestimate the breadth and diversity of what an Aizu can look like. However, if the stone performs terribly, that’s another matter all together.
 
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