Thread: Please help me Identify my Hone

Hi,
Afer a long Saerching for another Thuringian/Escher in my Collection i won this Hone in an Ebay Auction
last Week in Germany:

Its a very fine hone, even similar to the Celebrated Water Razorhone, but more homogenous in colour (dark grey/green) and grit. There are very very less Pyrite Enbeddings and the Hone ist a whole Softer than my green/blue Water Razor Hone, there are some different layers visible very very slightly.
The Dimensions are aproximately 21cm in Length (8 1/2") and 6,5cm in Width (2 3/4"), the Stone is about one inch thick.
As you can see, the slurry is light grey to dirty white, the feeling while honing is somkind of greasy, far away from the hard cutting feeling of my Coticules, and far away to from the Feeling of my other Thuringian.

I Bought in from a Seller in the Palatine, but there a several Stones of the Same size and Box that hab been Sold in French Ebay and in UK.
Does anyone know what Stone it could be, or does anyone one a similar and could help me identify my hone?
Thank you very much & Best Regards,
Helge