Thread: Is it a "schwedenstein" thuringian hone?

Dear Straight-Friends,

recently I've came accross with this guy.
The stone was in a quite used condition and had a lot of scratches.
Once surface was lapped and polished a bit a nice stripped/layered pattern with red and black lines came out.
The strips look like this stone were composed from 5 thin layers.

The hone is quite hard (harder than my black thuri) and produces light grey slurry.
I've finished a Fili14 on that with "thick slurry" - method and the shave was very effortless, smooth and close.

Now I am trying to understand what it is.
I could find some sample images from the thuringian "Schwedenstein" hone, which may also have those black/red lines but have never seen the striped structure like this.

Any suggestions guys?

Many thanks in advance
Philipp