Thread: Ordovician Thuringian Hones II – The Escher Quarry

Thanks for this information. Do you think the stone in this thread could be a Ordovician Thuringian?
http://straightrazorpalace.com/hones...ge-swirls.html

Hello everybody.
My name is Andrew. I'm from Ukraine.
And while I occasionally read this forum at least five years, this is my first comment.
It seems, and I accidentally came Troutstone. In my opinion it is more solid all Arkansas stones that I have had. On the nature and quality of his work, I do not read, just laundered in alkali, slightly flattened on the working plane of the diamond plate and updated them on the silicon carbide powder F400. Well I photographed. Here:

Not really sure about your stone being a Saxonian oilstone Stilus. There are such stones without the typical trout-like spots that I have shown in my introducing post, but most of them are really white or simple grey. The hardness you described is troutstone-like though.
Troutstones could be quite fast if you raise a slurry with a DMT and get very fine if you use them with oil at last stage of finishing.

Anyway, thans a lot for posting you stone!

You mean the typical spots - pink? No, they are not. But the other signs of the very same. As for colors and textures, I noticed the following. The stone was very dirty from the long-term work on it and lots of oil. After cleaning and smoothing the surface of the stone become almost white, and dark again before taking pictures. )) I think that the oil can be continued to emerge from the stone and changes color. I also noticed an interesting detail. Stone after leveling on the diamond plate does not become glossy, and was velvety to the touch. Now I had tried to work with oil (the surface is treated with the help of powder SiC F400) and it seemed to me a little bit rude. I think you need to treat the surface using SiC F800-F1000 powder, then the result of the work on it will be more interesting. Or you might not expect from this stone finer work?
Regarding his suspension. Yes, I tried to highlight the suspension of the diamond plate, but I do not really like it. In any case - until don't like it. I think due to the nature of the stone rock slurry it very fast, but rather coarse, very very slowly crushed. And maybe not crushed. This effect both on the Thuringian slates or JNAT's how it seemed to me from this suspension, the stone can not be achieved. While I think so. It may be the number of suspension should be very small?
Hatzicho,very grateful to you would be, if published more than clear photos or additional information about Troutstones. The identification, I have focused on them.

Before You helped us a lot with your publication of the Thuringian slates. And I personally helped your publication. Thank you for it.

Originally Posted by hatzicho

Not really sure about your stone being a Saxonian oilstone Stilus. There are such stones without the typical trout-like spots that I have shown in my introducing post, but most of them are really white or simple grey. The hardness you described is troutstone-like though.
Troutstones could be quite fast if you raise a slurry with a DMT and get very fine if you use them with oil at last stage of finishing.

Anyway, thans a lot for posting you stone!

I think I just bought a saxonian oil stone and was hoping for a better option? I bought it off of eBay UK item# 262869735650. I'll post better pictures when it gets here! And thank very much for all the information!!

Sent from my SAMSUNG-SM-G935A using Tapatalk

That eBay one looks like it might be a translucent Ark to me.

Originally Posted by eKretz

That eBay one looks like it might be a translucent Ark to me.

That was my first impression and the worst case scenario is your right (but that's really not that bad!) The only reason I fell it might not be is the chipping on the edge and the pattern! Either way I'll be happy!

Sent from my SAMSUNG-SM-G935A using Tapatalk

Originally Posted by aaron1234

That was my first impression and the worst case scenario is your right (but that's really not that bad!) The only reason I fell it might not be is the chipping on the edge and the pattern! Either way I'll be happy!

Sent from my SAMSUNG-SM-G935A using Tapatalk

Hard to say from the pictures on the net, but some parts of the stone look clearly translucent. So I would tend to an Ark too.

So found this old stone that came from Saxony Germany. Interested if it is a trout stone. It does have some issues being so old and well used not sure it can be flattened since the one back corner is under cut.

Is there a way to tell them apart from a Ark?