Thread: Dose this make sense to you?

Originally Posted by Hirlau

How can we even assign a natural stone a grit rating? What gauge or process would determine that grit rating? Unless we manufacture that stone/hone, which in this case the stone was pulled from the ground(a natural), we cannot be accurate. We can give our best guess based on experience with man-made stone, right,, so are our guesses accurate enough to tell the difference between a 12K or is it really a 15 or 16K.

How deep is the diamond abrasive on a plate(DMT) a 600 versus a 1200? Hard to tell by feel and hard to decipher by scope. Maybe it isn't depth , but quantity & size.

Different steels can produce different scratch patterns with the same stone.

I'm not sure why you quoted my post for your response; I didn't say anything about assigning grit ratings to naturals; I don't pretend to understand how grit ratings work at all. All I was saying is that a "low grit hone" could, in theory, leave a finish like a "higher grit hone." The numbers used are arbitrary.

Some hones definitely play to how they are prepped on the surface. Carborundums and arks are the most blatant examples

Originally Posted by Hirlau

Take that sharpened pencil point & that worn down pencil point and neither one will cut glass.

Originally Posted by tcrideshd

Not true. If you have time, plenty of time like several lifetimes anything can cut glass including water. Water is the main factor that has shaped the Earth.

Originally Posted by holli4pirating

I'm not sure why you quoted my post for your response; I didn't say anything about assigning grit ratings to naturals; I don't pretend to understand how grit ratings work at all. All I was saying is that a "low grit hone" could, in theory, leave a finish like a "higher grit hone." The numbers used are arbitrary.

The reason I quoted your post was two fold;
1. I assumed by your post that you were going along with the theory that the "natural stone" in question fell into a grit range.
2. I don't believe that the depth in which the abrasive sits in the binder is relative to the scratch pattern. I believe the scratch pattern is relative to the abrasive & the steel of the razor.

It looks like an agate type of rock to me.

We already know jasper one of the agate family is good as a hone, so I would expect this to be in the same ball park if that is the case.

I'd have to be dubious about the garnets. They can form in agates, but so can a lot of other inclusions. Without an actual appraisal I'd be tempted just to have them referred to as micro crystal inclusions.

Also if it is agate you can get it for far far less, allbeit with a bit off risk of getting a dud.

Searching ebay for "large agate slice" will give you a whole heap of items.

770G Large Natural Agate Slice Geode Polished Crystal Quartz | eBay

5 mins with a tile saw and you have a hone.

What I really want to see is a video from someone I trust using it. Lynn or GSsixgun. If I see them use one and give a fair appraisal then I'd be a lot less sceptical.

If it is the gila material it's not quite like just taking a typical polished disc of jasper or agate. If you have the surface prepped matte it stays that way, it doesn't really glaze fully or worse still in a patchy way like you'd think/expect. Something else is in play. Downside with the green stuff anyway is you can have the odd dry rice grain sized inclusion that has crystalline sand to do damage. On the plus side they lap out quite predictably even if lapping is hell. My main knock on it as a finisher for the masses is it is so stupidly hard it is unforgiving of new guy mistakes. That and it is not a water stone imo

So, can I purchase this magic hone with the three magic beans I got from the sale of the family cow?

Originally Posted by Iceni

It looks like an agate type of rock to me.

We already know jasper one of the agate family is good as a hone, so I would expect this to be in the same ball park if that is the case.

I'd have to be dubious about the garnets. They can form in agates, but so can a lot of other inclusions. Without an actual appraisal I'd be tempted just to have them referred to as micro crystal inclusions.

Also if it is agate you can get it for far far less, allbeit with a bit off risk of getting a dud.

Searching ebay for "large agate slice" will give you a whole heap of items.

770G Large Natural Agate Slice Geode Polished Crystal Quartz | eBay

5 mins with a tile saw and you have a hone.

What I really want to see is a video from someone I trust using it. Lynn or GSsixgun. If I see them use one and give a fair appraisal then I'd be a lot less sceptical.

I'm going to go broke in a week.

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I'm not going to rip into either of the guys who have sold those, but I always thought the price was daft for an unknown. I got mine from a friend in trade who had extras , personally I would not buy one at the asking prices, I would buy a hybrid coticule or something... But those are just my tastes